# Subir Sachdev Herchel Smith Professor of Physics Harvard University ![Subir Sachdev](/sites/g/files/omnuum12146/files/styles/hwp_4_5__480x600/public/2025-08/SSpic_1.jpg?itok=Ah4ZT1Va) location\_on Lyman 343 email *Staff support* **Elizabeth Alcock** Lyman 324B 617-495-8852 Elizabeth Alcock's email: - [ Facebook ](https://www.facebook.com/subirsachdev) - [ Linkedin ](https://www.linkedin.com/in/subirsachdev/) - [ Youtube ](https://www.youtube.com/@SachdevSYK) Sachdev's research describes the consequences of quantum entanglement on the macroscopic properties of natural systems. He has made extensive contributions to the description of the diverse varieties of states of quantum matter, and of their behavior near quantum phase transitions. Many of these contributions have been linked to experiments, especially to the rich phase diagrams of the copper-oxide high temperature superconductors. Sachdev's research has also exposed remarkable connections between the nature of multi-particle quantum entanglement in certain laboratory materials, and the quantum entanglement in astrophysical black holes, and these connections have led to new insights on the entropy and radiation of black holes. For more information, see also Sachdev's [YouTube channel](https://www.youtube.com/user/subir1961), and lectures on the [Perimeter Institute Archive](http://pirsa.org/index.php?p=speaker&name=Subir_Sachdev) and at [KITP, Santa Barbara](http://homer2.kitp.ucsb.edu/cgi-bin/talk/search.pl?field=%25&min_scope=0&since_year=1997&title_words=&speaker=Sachdev). See also - [632nm Podcast:](https://www.youtube.com/@632nmPodcast) *Superconductors, Black Holes, and Quantum Matter | Subir Sachdev on the SYK Model* \[[Video](https://www.youtube.com/watch?v=-3mn4tsjo9c)\] - [Dirac Conversations](https://www.youtube.com/watch?v=m3TDuR9_WtQ), International Centre for Theoretical Physics, Trieste, April 23, 2024. - Public lecture on *Quantum entanglement in nature* \[[Poster](http://140.247.122.253/talks/iitd_poster.jpeg); [PDF](http://140.247.122.253/talks/iitd24.pdf); [Keynote](http://140.247.122.253/talks/iitd24.key.zip); [Video](https://www.youtube.com/watch?v=6LBI9yarl58)\], Institute Lecture, Indian Institute of Technology, Delhi, January 3, 2024. - Public lecture on *Ultra-spooky action at a distance: from quantum materials in the lab to black holes* \[[PDF](http://140.247.122.253/talks/Simons20.pdf); [Keynote](http://140.247.122.253/talks/Simons20.key.zip); [Video](https://www.simonsfoundation.org/event/ultra-spooky-action-at-a-distance-from-quantum-materials-in-the-lab-to-black-holes/)\], Simons Foundation, New York, January 21, 2020 - Cafe talk on *Quantum entanglement: "Spooky action at distance" in the lab, and in black holes* \[[PDF](http://140.247.122.253/talks/branford19.pdf); [Keynote](http://140.247.122.253/talks/branford19.key.zip); [Video](https://www.youtube.com/watch?v=tFrI84MUOtw)\], Tilde Cafe, Branford CT, November 9, 2019. - [Interview with Dirac Medal Winners](https://www.youtube.com/watch?v=9EODiPsh0uU), International Centre for Theoretical Physics, Trieste, March 28, 2019. - [Chai with Manju](https://www.youtube.com/watch?v=rtF8v66wT6c), Interview with INE News, Oct 22, 2018. - [Interview in the Times of India](https://timesofindia.indiatimes.com/home/science/theorist-may-also-make-predictions-for-new-experiments-prof-sachdev/articleshow/65765219.cms), Sep 11, 2018. - [Black Holes and Revelations](http://140.247.122.253/discover_sachdev.pdf), Discover magazine, November 2017, page 70. - Public Lecture on *Quantum entanglement, strange metals, and black holes*, Simons Foundation, New York, February 8, 2017 \[[PDF](http://140.247.122.253/talks/simons17.pdf); [Keynote](http://140.247.122.253/talks/simons17.key.zip); [Video](https://www.simonsfoundation.org/lecture/quantum-entanglement-strange-metals-and-black-holes/)\] - [Taming Superconductors With String Theory](https://www.quantamagazine.org/20160121-superconductors-and-string-theory/), Interview in Quanta Magazine, January 21, 2016. Also in [Scientific American](http://www.scientificamerican.com/article/taming-superconductors-with-string-theory/). - [Dirac Lecture](https://www.physics.unsw.edu.au/news/dirac-medal-awarded-professor-subir-sachdev) \[[PDF](http://140.247.122.253/talks/sydneypublic15.pdf), [Video](https://www.youtube.com/watch?v=wmASydmYRdY)\] on *Quantum Entanglement and Superconductivity* at the University of New South Wales upon receiving the [Dirac Medal for the Advancement of Theoretical Physics](https://en.wikipedia.orghttps://en.wikipedia.org/wiki/Dirac_Prize), September 1, 2015. - Public Lecture on *Quantum Entanglement and Superconductivity*, Perimeter Institute for Theoretical Physics, Waterloo, Canada, October 1, 2014 \[[Video](http://youtu.be/g9hWML3NwN8); [PDF](http://140.247.122.253/talks/perimeterpublic14.pdf); [Keynote](http://140.247.122.253/talks/perimeterpublic14.key.zip); [Trailer](https://www.youtube.com/watch?v=_COwxyMOMcA); [Interview 1](https://www.youtube.com/watch?v=RqESHyr4vKg); [Interview 2](https://www.youtube.com/watch?v=pqB8a_V6O6Q)\]. - [Biography](http://www.nasonline.org/member-directory/members/20033107.html) at the National Academy of Sciences - [Public Lecture (Video)](https://www.youtube.com/watch?v=rZUgcUw_jF4) on *Quantum Entanglement and Superconductivity*, Wheeler Opera House, Aspen CO, March 18, 2014, hosted by the [Aspen Center for Physics](http://www.aspenphys.org) - [Videos of the Salam Distinguished Lectures 2014](https://www.youtube.com/playlist?list=PLoxv42WBtfCBOQd9u31m9gMg1bsnAaTKH), International Center for Theoretical Physics, Trieste, Italy, January 27-30, 2014. - [Interview](http://www.youtube.com/watch?v=mhNcU5UfBDE&list=PLoxv42WBtfCCCyfPRf-BcIgCkX9FNFPSU) at the International Center for Theoretical Physics, Trieste, Italy, January 28, 2014. - [*Strange and Stringy*](http://140.247.122.253/c63.pdf), article on the connections between condensed matter physics and string theory, [Scientific American **308**, 44 (January 2013)](http://www.nature.com/scientificamerican/journal/v308/n1/full/scientificamerican0113-44.html) - [A profile](http://www.hno.harvard.edu/gazette/2004/12.09/10-sachdev.html) and [an interview](http://www.news.harvard.edu/gazette/2005/10.06/03-sachdev.html) in the Harvard Gazette. - ## Person Categories [Faculty](/person-categories/faculty)