Subir Sachdev

Sachdev attended school at St. Joseph's Boys' High School, Bangalore and Kendriya Vidyalaya, ASC, Bangalore. He attended college at Indian Institute of Technology, Delhi for a year. He transferred to Massachusetts Institute of Technology where he received a B.S. in Physics. He received his Ph.D. in theoretical physics from Harvard University. He held professional positions at Bell Labs (1985–1987) and at Yale University (1987–2005), where he was a Professor of Physics, before returning to Harvard, where he is now the Herchel Smith Professor of Physics. He has also held visiting positions as the Cenovus Energy James Clerk Maxwell Chair in Theoretical Physics {{cite web | title= Subir Sachdev, Perimeter Institute | url=https://perimeterinstitute.ca/people/subir-sachdev}} at the Perimeter Institute for Theoretical Physics, and the Dr. Homi J. Bhabha Chair Professorship{{cite web | title= Endowment Chairs at TIFR | url=http://www.tifr.res.in/~endowment/endowment-chairs.htm}} at the Tata Institute of Fundamental Research. He has been a Visiting Scholar at the Flatiron Institute since 2019, and Miguel Virasoro Visiting International Chair, at the International Centre for Theoretical Physics since 2024. He has also been on the Physical Sciences jury for the Infosys Prize from 2018.{{Cite web|title=Infosys Prize – Jury 2020|url=http://www.infosys-science-foundation.com/prize/jury/jury-2020.asp|access-date=10 December 2020|website=www.infosys-science-foundation.com}}

{{Primary sources|section|date=February 2025}}

Sachdev has studied the nature of quantum entanglement in two-dimensional antiferromagnets, introducing several key ideas in a series of papers in 1989-1992. This includes the first proposal in 1990 of a fractionalized spin liquid phase with time-reversal symmetry, the Z₂ spin liquid; this was described by an emergent Z₂ gauge theory, with the same structure of excitations that appeared later in Kitaev's solvable toric code model.

He has developed the theory of quantum criticality, elucidating its implications for experimental observations on materials at non-zero temperature.

In this context, he proposed{{cite journal | last1=Sachdev | first1=Subir | last2=Ye | first2=Jinwu | title=Gapless spin-fluid ground state in a random quantum Heisenberg magnet | journal=Physical Review Letters | volume=70 | issue=21 | date=1993-05-24 | issn=0031-9007 | doi=10.1103/PhysRevLett.70.3339 | pages=3339–3342| pmid=10053843 | arxiv=cond-mat/9212030 | bibcode=1993PhRvL..70.3339S }} a solvable model of complex quantum entanglement in a metal which does not have any particle-like excitations: an extension of this is now called the Sachdev–Ye–Kitaev (SYK) model. These works have led to a theory of quantum phase transitions in metals in the presence of impurity-induced disorder, and a universal theory of strange metals{{cite journal | last1=Patel | first1=Aavishkar A. | last2=Guo | first2=Haoyu | last3=Esterlis | first3=Ilya | last4=Sachdev | first4=Subir | title=Universal theory of strange metals from spatially random interactions | journal=Science | volume=381 | issue=6659 | date=2023-08-18 | issn=0036-8075 | doi=10.1126/science.abq6011 | pages=790–793| pmid=37590350 | arxiv=2203.04990 | bibcode=2023Sci...381..790P }} which applies to a wide variety of correlated electron materials, including the copper-oxide materials exhibiting high temperature superconductivity. Many puzzling features of the `psuedogap' phase of these materials are also resolved by these theories. A connection between the structure of quantum entanglement in the SYK model and in black holes was first proposed by Sachdev,{{cite journal | last=Sachdev | first=Subir | title=Holographic Metals and the Fractionalized Fermi Liquid | journal=Physical Review Letters | volume=105 | issue=15 | date=2010-10-04 | issn=0031-9007 | doi=10.1103/PhysRevLett.105.151602 | page=151602| pmid=21230891 | arxiv=1006.3794 | bibcode=2010PhRvL.105o1602S }} and these connections have led to extensive developments in the quantum theory of black holes.

Extreme examples of complex quantum entanglement arise in metallic states of matter without quasiparticle excitations, often called strange metals. Such metals are invariably present in higher temperature superconductors, above the highest transition temperatures for superconductivity. The strange metallicity and superconductivity are manifestations of an underlying quantum critical state of matter without quasiparticle excitations. Remarkably, there is an intimate connection between the quantum physics of strange metals in modern materials (which can be studied in tabletop experiments), and quantum entanglement near black holes of astrophysics.

This connection is most clearly seen by thinking more carefully about the defining characteristic of a strange metal: the absence of quasiparticles. In practice, given a state of quantum matter, it is difficult to completely rule out the existence of quasiparticles: while one can confirm that certain perturbations do not create single quasiparticle excitations, it is almost impossible to rule out a non-local operator which could create an exotic quasiparticle in which the underlying electrons are non-locally entangled. Using theories of quantum phase transitions, Sachdev argued{{cite book |last=Sachdev |first=Subir |url=https://archive.org/details/quantumphasetran0000sach |title=Quantum phase transitions |publisher=Cambridge University Press |year=1999 |isbn=0-521-00454-3 |url-access=registration}}{{cite journal | last1=Damle | first1=Kedar | last2=Sachdev | first2=Subir | title=Nonzero-temperature transport near quantum critical points | journal=Physical Review B | volume=56 | issue=14 | date=1997-10-01 | issn=0163-1829 | doi=10.1103/PhysRevB.56.8714 | pages=8714–8733| arxiv=cond-mat/9705206 | bibcode=1997PhRvB..56.8714D }} instead that it is better to examine how rapidly the system loses quantum phase coherence, or reaches local thermal equilibrium in response to general external perturbations. If quasiparticles existed, dephasing would take a long time during which the excited quasiparticles collide with each other. In contrast, states without quasiparticles reach local thermal equilibrium in the fastest possible time, bounded below by a value of order (Planck constant)/((Boltzmann constant) x (absolute temperature)). Sachdev proposed{{cite journal | last=Sachdev | first=Subir | title=Bekenstein-Hawking Entropy and Strange Metals | journal=Physical Review X | volume=5 | issue=4 | date=2015-11-13 | issn=2160-3308 | doi=10.1103/PhysRevX.5.041025 | page=041025| arxiv=1506.05111 | bibcode=2015PhRvX...5d1025S }} a solvable model of a strange metal (a variant of which is now called the Sachdev–Ye–Kitaev (SYK),{{cite journal | last1=Chowdhury | first1=Debanjan | last2=Georges | first2=Antoine | last3=Parcollet | first3=Olivier | last4=Sachdev | first4=Subir | title=Sachdev-Ye-Kitaev models and beyond: Window into non-Fermi liquids | journal=Reviews of Modern Physics | volume=94 | issue=3 | date=2022-09-14 | page=035004 | issn=0034-6861 | doi=10.1103/RevModPhys.94.035004| arxiv=2109.05037 | bibcode=2022RvMP...94c5004C }} which was shown to saturate such a bound on the time to reach quantum chaos.{{cite journal|last1=Maldacena|first1=Juan|last2=Shenker|first2=Stephen H.|last3=Stanford|first3=Douglas|title=A bound on chaos|journal=Journal of High Energy Physics|volume=2016|issue=8|year=2016|page=106|issn=1029-8479|doi=10.1007/JHEP08(2016)106|arxiv=1503.01409|bibcode=2016JHEP...08..106M|s2cid=84832638}}

We can now make the connection to the quantum theory of black holes: quite generally, black holes also thermalize and reach quantum chaos in a time of order (Planck constant)/((Boltzmann constant) x (absolute temperature)),{{cite journal|last1=Dray|first1=Tevian|last2='t Hooft|first2=Gerard|title=The gravitational shock wave of a massless particle|journal=Nuclear Physics B|volume=253|year=1985|pages=173–188|issn=0550-3213|doi=10.1016/0550-3213(85)90525-5|bibcode=1985NuPhB.253..173D|hdl=1874/4758|hdl-access=free}}{{cite journal|last1=Shenker|first1=Stephen H.|last2=Stanford|first2=Douglas|title=Black holes and the butterfly effect|journal=Journal of High Energy Physics|volume=2014|issue=3|year=2014|page=67|issn=1029-8479|doi=10.1007/JHEP03(2014)067|arxiv=1306.0622|bibcode=2014JHEP...03..067S|s2cid=54184366}} where the absolute temperature is the black hole's Hawking temperature.

And this similarity to quantum matter without quasiparticles is not a co-incidence: Sachdev argued that the SYK model maps holographically to the low energy physics of charged black holes in 4 spacetime dimension. Also key to this connection were the facts that in the limit of zero temperature, charged black holes have a non-zero entropy proportional to the horizon area, and the SYK model has a non-zero entropy density.{{cite journal | last1=Georges | first1=A. | last2=Parcollet | first2=O. | last3=Sachdev | first3=S. | title=Quantum fluctuations of a nearly critical Heisenberg spin glass | journal=Physical Review B | volume=63 | issue=13 | date=2001-03-01 | issn=0163-1829 | doi=10.1103/PhysRevB.63.134406 | page=134406| arxiv=cond-mat/0009388 | bibcode=2001PhRvB..63m4406G }} Indeed, the SYK model was the first model to exhibit a non-vanishing zero temperature entropy density without an exponentially large ground state degeneracy, and so the holographic mapping implied that charged black holes share this feature.

Also key to this connection was the fact that charged black holes have a non-zero entropy in the limit of zero temperature, as does the SYK model when the zero temperature limit is taken after the large size limit.{{cite journal | last1=Georges | first1=A. | last2=Parcollet | first2=O. | last3=Sachdev | first3=S. | title=Quantum fluctuations of a nearly critical Heisenberg spin glass | journal=Physical Review B | volume=63 | issue=13 | date=2001-03-01 | issn=0163-1829 | doi=10.1103/PhysRevB.63.134406 | page=134406| arxiv=cond-mat/0009388 | bibcode=2001PhRvB..63m4406G }}

These and other related works on quantum criticality by Sachdev and collaborators have led to valuable insights on the properties of electronic quantum matter, and on the nature of Hawking radiation from black holes. Solvable models related to gravitational duals and the SYK model have led to the discovery of more realistic models of quantum phase transitions in the high temperature superconductors and other compounds. Advances in the theory of quantum transitions in metals in the presence of impurities have led to a universal theory of strange metals which applies across a wide range of correlated electron compounds. Such predictions{{cite journal | last1=Müller | first1=Markus | last2=Sachdev | first2=Subir | title=Collective cyclotron motion of the relativistic plasma in graphene | journal=Physical Review B | volume=78 | issue=11 | date=2008-09-19 | issn=1098-0121 | doi=10.1103/PhysRevB.78.115419 | page=115419| arxiv=0801.2970 | bibcode=2008PhRvB..78k5419M }} have been connected to experiments on graphene{{cite journal|last1=Bandurin|first1=D. A.|last2=Torre|first2=I.|last3=Kumar|first3=R. K.|last4=Ben Shalom|first4=M.|last5=Tomadin|first5=A.|last6=Principi|first6=A.|last7=Auton|first7=G. H.|last8=Khestanova|first8=E.|last9=Novoselov|first9=K. S.|last10=Grigorieva|first10=I. V.|last11=Ponomarenko|first11=L. A.|last12=Geim|first12=A. K.|last13=Polini|first13=M.|title=Negative local resistance caused by viscous electron backflow in graphene|journal=Science|volume=351|issue=6277|year=2016|pages=1055–1058|issn=0036-8075|doi=10.1126/science.aad0201|pmid=26912363|arxiv=1509.04165|bibcode=2016Sci...351.1055B|s2cid=45538235}}{{cite journal | last1=Crossno | first1=Jesse | last2=Shi | first2=Jing K. | last3=Wang | first3=Ke | last4=Liu | first4=Xiaomeng | last5=Harzheim | first5=Achim | last6=Lucas | first6=Andrew | last7=Sachdev | first7=Subir | last8=Kim | first8=Philip | last9=Taniguchi | first9=Takashi | last10=Watanabe | first10=Kenji | last11=Ohki | first11=Thomas A. | last12=Fong | first12=Kin Chung | title=Observation of the Dirac fluid and the breakdown of the Wiedemann-Franz law in graphene | journal=Science | volume=351 | issue=6277 | date=2016-03-04 | issn=0036-8075 | doi=10.1126/science.aad0343 | pages=1058–1061| pmid=26912362 | arxiv=1509.04713 | bibcode=2016Sci...351.1058C }} and the cuprate superconductors.{{cite journal | last1=Michon | first1=Bastien | last2=Berthod | first2=Christophe | last3=Rischau | first3=Carl Willem | last4=Ataei | first4=Amirreza | last5=Chen | first5=Lu | last6=Komiya | first6=Seiki | last7=Ono | first7=Shimpei | last8=Taillefer | first8=Louis | last9=van der Marel | first9=Dirk | last10=Georges | first10=Antoine | title=Reconciling scaling of the optical conductivity of cuprate superconductors with Planckian resistivity and specific heat | journal=Nature Communications | volume=14 | issue=1 | date=2023-05-26 | page=3033 | issn=2041-1723 | pmid=37236962 | pmc=10220041 | doi=10.1038/s41467-023-38762-5| arxiv=2205.04030 | bibcode=2023NatCo..14.3033M }} The SYK model plays a key role in the

computation of the density of low energy quantum states of non-supersymmetric charged black holes in 4 spacetime dimensions,{{cite arXiv | last1=Iliesiu | first1=Luca V. | last2=Murthy | first2=Sameer | last3=Turiaci | first3=Gustavo J. | title=Revisiting the Logarithmic Corrections to the Black Hole Entropy | date=2022 | class=hep-th | eprint=2209.13608 }}{{cite journal | last=Sachdev | first=Subir | title=Quantum statistical mechanics of the Sachdev-Ye-Kitaev model and charged black holes | journal=International Journal of Modern Physics B | date=2024 | volume=38 | issue=32 | doi=10.1142/S0217979224300032 | arxiv=2304.13744 | bibcode=2024IJMPB..3830003S }} and provides the underlying Hamiltonian system upon which advances on the Page curve of entanglement entropy of evaporating black holes have been tested.{{cite journal | last1=Bousso | first1=Raphael | last2=Dong | first2=Xi | last3=Engelhardt | first3=Netta | last4=Faulkner | first4=Thomas | last5=Hartman | first5=Thomas | last6=Shenker | first6=Stephen H. | last7=Stanford | first7=Douglas | title=Snowmass White Paper: Quantum Aspects of Black Holes and the Emergence of Spacetime | date=2022 | arxiv=2201.03096}}

Sachdev has also developed the theory of critical quantum spin liquids which feature fractionalization and emergent gauge fields, along with absence of quasiparticles. Such spin liquids play an important role in the theory of the cuprate superconductors.

Phillip W. Anderson proposed{{cite journal|last1=Anderson|first1=P.W.|title=Resonating valence bonds: A new kind of insulator?|journal=Materials Research Bulletin|volume=8|issue=2|year=1973|pages=153–160|issn=0025-5408|doi=10.1016/0025-5408(73)90167-0}} that Mott insulators realize antiferromagnets which could form resonating valence bond (RVB) or quantum spin liquid states with an energy gap to spin excitations without breaking time-reversal symmetry. It was conjectured that such RVB states have excitations with fractional quantum numbers, such as a fractional spin 1/2. The existence of such RVB ground states, and of the deconfinement of fractionalized excitations was first established by Read and Sachdev{{cite journal|last1=Read|first1=N.|last2=Sachdev|first2=Subir|title=Large-Nexpansion for frustrated quantum antiferromagnets|journal=Physical Review Letters|volume=66|issue=13|year=1991|pages=1773–1776|issn=0031-9007|doi=10.1103/PhysRevLett.66.1773|bibcode=1991PhRvL..66.1773R|pmid=10043303}} and Wen{{cite journal|last1=Wen|first1=X. G.|title=Mean-field theory of spin-liquid states with finite energy gap and topological orders|journal=Physical Review B|volume=44|issue=6|year=1991|pages=2664–2672|issn=0163-1829|doi=10.1103/PhysRevB.44.2664|bibcode=1991PhRvB..44.2664W|pmid=9999836}} by the connection to a Z₂ gauge theory. Sachdev was also the first to show that the RVB state is an odd Z₂ gauge theory,.{{cite journal|last1=Jalabert|first1=Rodolfo A.|last2=Sachdev|first2=Subir|title=Spontaneous alignment of frustrated bonds in an anisotropic, three-dimensional Ising model|journal=Physical Review B|volume=44|issue=2|year=1991|pages=686–690|issn=0163-1829|doi=10.1103/PhysRevB.44.686|pmid=9999168|bibcode=1991PhRvB..44..686J}}{{cite journal

|last1=Sachdev

|first1=S.

|last2=Vojta

|first2=M.

|url=https://journals.jps.jp/page/jpsj/suppl

|date=1999

|title=Translational symmetry breaking in two-dimensional antiferromagnets and superconductors

|journal=J. Phys. Soc. Jpn.

|volume = 69, Supp. B

|pages = 1

|arxiv = cond-mat/9910231|bibcode=1999cond.mat.10231S

}}{{cite journal|last1=Sachdev|first1=Subir|title=Topological order, emergent gauge fields, and Fermi surface reconstruction|journal=Reports on Progress in Physics|volume=82|issue=1|year=2019|pages=014001|issn=0034-4885|doi=10.1088/1361-6633/aae110|pmid=30210062|arxiv = 1801.01125 |bibcode=2019RPPh...82a4001S |s2cid=52197314}} An odd Z₂ spin liquid has a background Z₂ electric charge on each lattice site (equivalently, translations in the x and y directions anti-commute with each other in the super-selection sector of states associated with a Z₂ gauge flux (also known as the m sector)). Sachdev showed that antiferromagnets with half-integer spin form odd Z₂ spin liquids, and those with integer spin form even Z₂ spin liquids. Using this theory, various universal properties of the RVB state were understood, including constraints on the symmetry transformations of the anyon excitations. Sachdev also obtained many results on the confinement transitions of the RVB state, including restrictions on proximate quantum phases and the nature of quantum phase transitions to them.

The topological order (i.e. ground state degeneracies on 2-manifolds) and anyons of Z₂ quantum spin liquids are identical to those which appeared later in the solvable toric code model, which plays a key role in quantum error correction in qubit devices.

Z₂ spin liquids are ground states of spin models on the kagome lattice, and this has been connected to experiments on correlated electron materials and arrays of trapped Rydberg atoms.

• LeRoy Apker Award Recipient, 1982.{{cite web |title=LeRoy Apker Award Recipient |url=http://www.aps.org/programs/honors/awards/apker.cfm |access-date=30 June 2010 |publisher=American Physical Society}}
• Alfred P. Sloan Foundation Fellow, February 1989.{{Cite web |title=Past Fellows |url=https://sloan.org/past-fellows/ |access-date=23 October 2018 |website=sloan.org}}
• Fellow of the American Physical Society "for his contributions to the theory of quantum phase transitions and its application to correlated electron materials".{{cite web |title=APS Fellow archive |url=https://www.aps.org/programs/honors/fellowships/archive-all.cfm?initial=&year=2001&unit_id=&institution= |access-date=21 September 2020 |publisher=APS}}
• John Simon Guggenheim Memorial Foundation Fellow, 2003.{{cite web |title=All Fellows – John Simon Guggenheim Memorial Foundation |url=http://jsgmf.org/fellows/all?index=s |access-date=26 January 2010 |publisher=John Simon Guggenheim Memorial Foundation}}
• Perimeter Institute for Theoretical Physics Distinguished Research Chair, 2009–14.{{cite web |title=Nine Leading Researchers Join Stephen Hawking as Distinguished Research Chairs at PI |url=http://www.perimeterinstitute.ca/News/In_The_Media/Nine_Leading_Researchers_Join_Stephen_Hawking_as_Distinguished_Research_Chairs_at_PI/ |publisher=Perimeter Institute for Theoretical Physics}}
• Abdus Salam Distinguished Lecturer, International Center for Theoretical Physics, Trieste, Italy, 2014.{{cite web |title=Condensed matter physicist Subir Sachdev to deliver Salam Distinguished Lectures 2014 |url=https://www.ictp.it/about-ictp/media-centre/news/news-archive/2014/1/salam-lectures-2014.aspx}}
• Hendrik Lorentz Chair, Lorentz Institute, 2012.{{cite web |title=Lorentz Chair |url=http://lorentz.leidenuniv.nl/lorentzchair/lorentzchair.html}}
• Elected to the U.S. National Academy of Sciences, 2014.{{cite web |title=Subir Sachdev NAS member |url=http://nrc88.nas.edu/pnas_search/memberDetails.aspx?ctID=20033107}} Citation:

Sachdev has made seminal advances in the theory of condensed matter systems near a quantum phase transition, which have elucidated the rich variety of static and dynamic behavior in such systems, both at finite temperatures and at T=0. His book, Quantum Phase Transitions, is the basic text of the field.

• Dirac Medal for the Advancement of Theoretical Physics (University of New South Wales), 2015.{{cite web |title=Dirac Medal awarded to Professor Subir Sachdev |url=https://www.physics.unsw.edu.au/news/dirac-medal-awarded-professor-subir-sachdev}} Citation:

The Dirac Medal was awarded to Professor Sachdev in recognition of his many seminal contributions to the theory of strongly interacting condensed matter systems: quantum phase transitions, including the idea of critical deconfinement and the breakdown of the conventional symmetry based Landau–Ginsburg–Wilson paradigm; the prediction of exotic 'spin-liquid' and fractionalized states; and applications to the theory of high-temperature superconductivity in the cuprate materials.

• Lars Onsager Prize (American Physical Society), 2018, to recognize outstanding research in theoretical statistical physics including the quantum fluids.{{cite web |title=2018 Lars Onsager Prize Recipient |url=https://www.aps.org/programs/honors/prizes/prizerecipient.cfm?last_nm=Sachdev&first_nm=Subir&year=2018}} Citation:

for his seminal contributions to the theory of quantum phase transitions, quantum magnetism, and fractionalized spin liquids, and for his leadership in the physics community.

• Dirac Medal (International Center for Theoretical Physics), 2018; shared with Dam Thanh Son and Xiao-Gang Wen for "independent contributions towards understanding novel phases in strongly interacting many-body systems, introducing original transdisciplinary techniques".{{Cite web |title=ICTP – Dirac Medallists 2018 |url=https://www.ictp.it/about-ictp/prizes-awards/the-dirac-medal/the-medallists/dirac-medallists-2018.aspx |website=www.ictp.it}} Citation:

Subir Sachdev has made pioneering contributions to many areas of theoretical condensed matter physics. Of particular importance were the development of the theory of quantum critical phenomena in insulators, superconductors and metals; the theory of spin-liquid states of quantum antiferromagnets and the theory of fractionalized phases of matter; the study of novel deconfinement phase transitions; the theory of quantum matter without quasiparticles; and the application of many of these ideas to a priori unrelated problems in black hole physics, including a concrete model of non-Fermi liquids.

• Foreign Fellow of the Indian National Science Academy, 2019.{{cite web |title=INSA Foreign Fellows elected |url=http://insaindia.res.in/fef.php}} Citation:

Professor Subir Sachdev is a world renowned condensed matter theorist, with many seminal contributions to the theory of strongly interacting condensed matter systems. He is a pioneer in the study of systems near quantum phase transitions. He has also pioneered the exploration of the connection between physical properties of modern quantum materials and the nature of quantum entanglement in their many-particle state, elucidating the diverse varieties of entangled states of quantum matter.

• Elected to the American Academy of Arts and Sciences, 2019.{{cite web |date=17 April 2019 |title=New 2019 Academy Members Announced |url=https://www.amacad.org/news/2019-members-announcement}}
• Honorary Fellow of the Indian Academy of Sciences, 2019.{{cite web |title=IAS honorary fellows |url=https://www.ias.ac.in/listing/fellows/honorary}}
• Jacques Solvay International Chair in Physics, [http://www.solvayinstitutes.be/html/chair.html International Solvay Institutes], Brussels, 2023
• [https://www.ias.ac.in/About_IASc/Raman_Chair/ Raman Chair], Indian Academy of Sciences, 2023-24.
• Foreign Member of the Royal Society, 2023. Citation:

Subir Sachdev has made profound contributions to theoretical condensed matter physics research. His main interests have been in quantum magnetism, quantum criticality, and perhaps most innovative of all, links between the nature of quantum entanglement in black holes and strongly interacting electrons in materials.

• {{cite book |last=Sachdev |first=Subir |url=https://www.cambridge.org/core/books/quantum-phases-of-matter/1D3F53A6FB1B448CE2484C5F797A1A00 |title=Quantum Phase Transitions |date=2011-04-07 |publisher=Cambridge University Press |isbn=978-1-139-50021-0 |language=en}}
• {{cite book |last1=Hartnoll |first1=Sean A. |url=https://mitpress.mit.edu/9780262038430/holographic-quantum-matter/ |title=Holographic Quantum Matter |last2=Lucas |first2=Andrew |last3=Sachdev |first3=Subir |date=2018-03-16 |publisher=MIT Press |isbn=978-0-262-34802-7 |language=en}}
• {{Cite book |last=Sachdev |first=Subir |url=https://www.cambridge.org/core/books/quantum-phase-transitions/33C1C81500346005E54C1DE4223E5562 |title=Quantum Phases of Matter |date=2023-04-13 |publisher=Cambridge University Press |isbn=978-1-009-21269-4 |language=en}}

{{reflist}}

• [https://www.aip.org/history-programs/niels-bohr-library/oral-histories/46897 Interview of Subir Sachdev by David Zierler on June 11, 2021, Niels Bohr Library & Archives, American Institute of Physics, College Park, MD, USA]
• {{official website|http://sachdev.physics.harvard.edu/}}
• [https://arxiv.org/a/sachdev_s_1.html List of Publications] on the arXiv
• {{Google scholar id}}
• [https://www.youtube.com/user/subir1961/ YouTube channel of Subir Sachdev with video lectures]

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