## Archive

#### Past Years

##### Fall 2008

Sept. 9 & 23

**Cecilia Garraffo** (University of Buenos Aires)

*Ultraviolet corrections to the Einstein-Hilbert action*

Sept. 16

**Hajar Ebrahim** (Brandeis University)

*Black holes and qubits*

Sept. 29

**Matthew Headrick** (Brandeis University)

*Tachyon actions in string theory: a no-go theorem*

Oct. 7

**Hajar Ebrahim** (Brandeis University)

*Quantum entropy function from AdS2/CFT1 correspondence*

Oct. 14

**Ian Swanson** (MIT)

*An overview of the closed string tachyon*

Oct. 16

**Herman Nicolai** (AEI Potsdam)

*M2 branes and maximal gauged supergravities in D=3*

Oct. 21

**Sean Hartnoll** (Harvard University)

*Holographic superconductors*

Oct. 28

**Matthias Wapler** (Perimeter Institute)

*Transport properties of holographic defects*

Nov. 4

**Alessandro Tomasiello** (Harvard University)

*AdS4 vacua in string theory, and their CFT duals*

Nov. 11

**Cynthia Keeler** (Harvard University)

*Closed string tachyon condensation in E8*

Nov. 18

**Howard Schnitzer** (Brandeis University)

*Regge behavior in N=4 super-Yang-Mills theory*

Nov. 25

**Delia Schwartz-Perlov** (Tufts University)

*The path(s) most taken: anthropic selection in the landscape*

Dec. 4

**Gaston Giribet** (U. of Buenos Aires)

*Duality between non-rational CFTs and their string theory interpretation*

**Chethan Gowdigere**(HRI Allahabad)

*Explicit Calabi-Yau metrics on resolved spaces*

##### Spring 2009

**Hong Liu**(MIT)

*A worldsheet instanton-induced 3rd order phase transition*

Jan. 27

**Stephen Naculich** (Bowdoin College)

*Iterative structures in N=4 SYM and N=8 supergravity amplitudes*

Feb. 3

**Marcus Spradlin** (Brown University)

*Aspects of graviton scattering amplitudes*

Feb. 9 (Monday)

**Toby Wiseman** (Imperial College London)

*Lattice simulation of thermal D0-branes*

Feb. 10

**Andrew Neitzke** (Harvard University)

*BPS wall-crossing and 3-dimensional ﬁeld theory*

Feb. 17

**Michael Duff** (Imperial College London)

*Black holes, qubits and octonions*

Feb. 24

**Isaac Cohen-Abbo** (Brandeis University)

*About the nature of dark matter and dark energy*

March 3

**John McGreevy** (MIT)

*Gravity duals of non-relativistic quantum critical points*

March 10

**Matthew Headrick** (Brandeis University)

*New approaches to numerical Calabi-Yau metrics*

March 17

**Frederik Denef** (Harvard University)

*Orientiholes*

March 24 and March 31

**Albion Lawrence** (Brandeis University)

*Black holes and gauge theory*

April 21

**Nathaniel Reden** (Brandeis University)

*Constraints on inflation*

April 28 at **2 pm**

**Shiraz Minwalla** (TIFR)

*Weak field black hole formation in asymptotically AdS spacetimes*

**Claudio Chamon**(Boston University)

*Why glasses? vs. universality in glassy dynamics*

##### Fall 2009

**Gaston Giribet**(University of Buenos Aires and CONICET)

*The Black Holes of New Massive Gravity*

Oct. 13

**Hajar Ebrahim**(Brandeis University)

*TBA*

Oct. 27

**Sumit Das**(University of Kentucky)

*Spin models and emergent gauge fields at Lifshitz points*

*Nov. 3*

**Sakura Schafer-Nameki**(KITP/UC Santa Barbara)

*Constraining F-theory model building*

Nov. 10

**Radu Roiban**(Penn State University)

*On short strings in AdS_5 x S*

^{5 }

##### Spring 2010

January 26

**Xi Yin** (Harvard University)

*Higher spin gauge theory and holography*

February 2

**Matthew Headrick** (Brandeis University)

*Holography and entanglement entropy*

February 9

**Wei Song** (Harvard University)

*The Kerr-Fermi sea*

February 23, 1 pm (Joint Theory Blackboard)

**Ilya Gruzberg** (University of Chicago)

*Quantum Hall transitions and conformal restriction*

March 2

**Diego Hofman** (Harvard University)

*Generalized Lifshitz-Kosevich scaling at quantum criticality from the holographic correspondence*

March 9

**Lance Dixon** (SLAC)

*Perturbative Ultraviolet Behavior of N=8 Supergravity*

March 16

**Mboyo Esole** (Harvard University)

*New weak coupling limits in F-theory and non-Kodaira singular fibers*

March 23

**Miranda Cheng** (Harvard University)

*Deforming the Lifshitz Holography*

April 8, 2:30 pm

**Eric Bergshoeff** (University of Groningen)

*Massive Gravity in Three Dimensions*

April 13

**Simone Giombi** (Harvard University)

*Quantum AdS_5 x S^5 superstring in the AdS light-cone gauge*

April 19, 1 pm (Joint Theory Blackboard)

**Hong Liu** (MIT)

*From Black Holes to Strange Metals*

April 27

**Alex Maloney** (McGill University)

*Where are the Microstates of the Kerr Black Hole?*

May 4

**Albion Lawrence** (Brandeis University)

*An effective field theory for chaotic inflation*

**Henriette Elvang**(University of Michigan)

*new approach to counterterms in N=8 supergravity*

##### Spring 2011

January 25

**Xingang Chen** (Cambridge University)

*Strongly coupled inflation
*

**(note earlier start time: 1:30pm)**

**Dimitra Karabali**(Lehman College)

*Casimir Effect: Edges and Diffraction*

##### Fall 2011

September 6

**Jianyang He** (Brandeis)

*Holographic condensed matter theory*

September 20

**Brian Wecht** (Harvard and Queen Mary)

*Quantum Field Theory Without Lagrangians*

September 27

11:00am

**Takemichi Okui** (Florida State)

*Viable gravity mediation*

October 11

**Horatiu Nastase** (Instituto de Fisica Teorica, UNESP**,** Brazil)

*Advances in maximally supersymmetric scattering amplitudes*

*Lecture 1: "Perturbative N=4 SYM and N=8 supergravity amplitudes*

October 18

**Ronen Plesser** (Duke University)

*Geometry of perturbative heterotic vacua*

*
* October 19 (Wednesday)

11:00am

**Horatiu Nastase**(Instituto de Fisica Teorica, UNESP

**,**Brazil)

*Advances in maximally supersymmetric scattering amplitudes*

*Lecture 2: "AdS/CFT and applications"*

November 1

11:00am

**Dr. Andrew Zayakin**(LMU-Garching)

*Exact one-loop strong coupling results for string spectrum in AdS4 x CP3 versus the all-loop Bethe Ansatz*

November 8

11:00am (note that the seminar will meet in Abelson 333 today)**
Dr. Ben Freivogel** (MIT)

*Completely Stable Oscillations in Conformal Field Theories*

11:00am

**Amit Sever**(Perimeter)

*TBA*

##### Spring 2012

January 17

**Zvi Bern** (UCLA)

Gravity as a double copy of gauge theory

January 24

**Albion Lawrence** (Brandeis)

*Axion monodromy*

January 31

**Marco Aldi** (Brandeis)

*Quantum sigma-model and twisted T-duality*

February 7

**Jacob Bourjaily** (Harvard)

*Quantum Field Theory and the Analytic S-Matrix, Redux*

February 14

**Brian Shuve** (Harvard)

*A WIMPy Baryogenesis Miracle*

February 21

No seminar. Midterm recess.

February 28

**Per Berglund** (UNH)

*Global Embeddings for Branes at Toric Singularities*

March 6

**Matt Roberts** (NYU)

*Entanglement entropy after a local quench: A holographic story*

March 13

**Massimo Porrati** (NYU)

*Surprises with Interacting High Spin Particles*

March 20

** Matthew Headrick** (Brandeis)

*Properties of entropy in holographic theories*

**March 27**

**Jonathan Heckman**(IAS)

*4D Gravity as a Twistor Matrix Model*

April 3

**Shamit Kachru**(Stanford)

*New Horizons in Holography*

April 10

No seminar. Passover and spring recess.

April 17

**Matt Reece**(Harvard)

*Supersymmetry, Naturalness, and the LHC: Where Do We Stand*

Abelson 229 (note change of room)

**Sam McCandlish**(Brandeis)

*Bending and Breaking Time Contours: A World Line Approach to Quantum Field Theory*

##### Fall 2012

Monday, Oct. 15, 11am **
Alessandro Tomasiello** (Milan)

A Geometric Classification of Supersymmetric Solutions in String Theory

A Geometric Classification of Supersymmetric Solutions in String Theory

Tuesday, November 13, 1:30pm

**Shinobu Hosono** (Tokyo)

*Mirror symmetry of determinantal quintics in**P ^{4}*

##### Spring 2013

Jan. 15

**Matthew Headrick** (Brandeis)

*Bose-Fermi duality and entanglement entropies*

Jan. 22

**Jianyang He** (Brandeis)

*Holographic entanglement entropy and strong subadditivity*

Jan. 29 (2:30pm)

**Misha Smolkin** (Perimeter)

*Black hole entropy vs entanglement entropy revisited*

Feb. 5

**Daniel Harlow** (Princeton)

*Quantum Computation vs. Firewalls*

Feb. 12

**Joe Minahan** (Uppsala)

*N^3 behavior from 5-dimensional super Yang-Mills*

March 4 (Monday)

**Alejandra Castro** (Harvard)

*Curiosities and Coincidences in Black Hole Physics*

March 5

**Silviu Pufu** (MIT)

*The F-theorem and monopole operators in 3d CFTs*

March 6 (Wednesday)

**Andrew Waldron** (UC Davis) Note room change: Abelson 333

*Acausality of Massive Gravity*

March 12

**Daniel Friedan** (Rutgers)

*Geometry of the 2-d renormalization group*

March 19

**Chris White** (Glasgow)

*BCJ Duality, the double copy and the soft limit*

April 9**
César Agón** (Brandeis)

*On the Beaming of Gluonic Fields at Strong Coupling*

April 16

**Albion Lawrence**(Brandeis)

*Holography and Renormalization*

April 23 (1:00pm, instead of 11am)

**Emanuel Katz**(Boston University)

*A New Theory of Anyons*

##### Fall 2013

Sept. 3

**Ida Zadeh** (Brandeis)

*Operator mixing in the D1-D5 CFT near the orbifold point*

Sept. 10

**Matthew Headrick** (Brandeis)

*What can holographic entanglement entropy teach us about general relativity?*

Sept. 24

**Anastasia Volovich** (Brown)

*Motivic amplitudes and cluster coordinates*

Oct. 1

**Lara Anderson** (Virginia Tech)

*T-branes and geometry*

Oct. 15

**Tom Faulkner** (IAS)

*Some results on entanglement in holographic field theories*

Oct. 22

**Matthew von Hippel** (Simons Center)

*Hexagon functions: Bootstrapping the three-loop remainder function*

Oct. 29

**Gokce Basar** (Stony Brook)

*Resurgence theory, ghost instantons and analytical continuation of path integrals*

Nov. 5

**Schlomo Razamat** (IAS)

*3d dualities from 4d dualities*

Nov. 12

**Julian Sonner** (MIT)

*The Schwinger effect and the geometry of entanglement*

Nov. 13 (Wednesday at 11:00am)

**Samir Mathur** (Ohio State)

*Fuzzballs vs. squids*

Nov. 19

**Albion Lawrence** (Brandeis)

*Metastability and instability** in holographic** gauge theories*

Dec. 3

**Babak Haghighat** (Harvard)

*M-strings and their orbifolds*

##### Spring 2014

Jan. 14

**Masoud Soroush** (Brandeis)

*Knot invariants and topological strings*

Jan. 21

**Matthew Headrick** (Brandeis)

*Entanglement entropy in quantum field theory: An overview*

Jan. 28

*TBA*

Feb. 4

**Mukund Rangamani** (Durham)

*Effective actions for anomalous hydrodynamics*

Feb. 11

**Miguel Paulos** (Brown University)

*Bootstrapping with precision*

Feb. 25

**Alex Maloney** (McGill)

*Supersymmetry in de Sitter Space*

March 4

**Bartek Czech** (Stanford)

*On UV/IR entanglement, or closed curves in AdS_3*

March 11

**Al Shapere** (Kentucky)

*Constraints on the spectra of 2d CFTs*

March 25

**David Shih** (Rutgers)

*The Status of SUSY after Run I of the LHC
* Note different location: SSC - 3-37, third floor of Shapiro Science Center

April 1

**James Halverson** (KITP)

*Anomaly Nucleation as New Motivation for WIMPs*

April 8

**Weijia Li** (Beijing Normal U. & Harvard)

*Periodically driven holographic superconductor*

April 29

**Bong Lian** (Brandeis)

Recent progress on period integrals

##### Fall 2014

Sept. 8

**Christoph Keller** (Rutgers)

*3d Gravity, Universality and Poincare Series*

Sept. 15

**Steven Avery** (Brown)

*General Bounds on the Evolution of Entanglement Entropy*

Sept. 22

**Dan Freedman** (MIT)

*Explicitly Broken Supersymmetry with Exactly Massless Moduli*

Sept. 29

**Jared Kaplan** (Johns Hopkins)

*AdS Locality, Gravity, and Black Hole Physics from the CFT Bootstrap*

Oct. 6

**Ida Zadeh** (Brandeis)

*Rényi entropies and pure quantum gravity partition functions*

Oct. 13

**Dam Thanh Son** (U. Chicago)

*Quantum Hall effect and Newton-Cartan geometry*

Oct. 20

**Robert Penna** (MIT)

*Spinning Black Holes and the Membrane Paradigm*

Oct. 27

**Jie Gu** (Bonn University). *Rescheduled.
*

*Braiding knots with topological string*

Nov. 3

**Parthasarathi Majumdar** (Ramakrishna Mission Vivekananda University)

*Critical Mass of Neutron Stars : A Black Hole Entropic View*

Nov. 10

**Albion Lawrence** (Brandeis)

*Coarse-grained quantum dynamics*

Nov. 17

**Thomas Dumitrescu** (Harvard)

*Deformations of Superconformal Field Theories*

**Ben Safdi**(MIT)

*Renyi entropy, stationarity, and entanglement of the conformal scalar*

Dec. 1

**Jie Gu**(Bonn University)

*Braiding knots with topological string*

##### Spring 2015

Jan. 12

**Robert Caldwel**l (Dartmouth)

*The Chiral Imprint of a Cosmic Gauge Field on Primordial Gravitational Waves*

Jan. 26

**Igor Klebanov** (Princeton)

*O(N) Models and Higher Spin AdS/CFT*

Feb. 3

**Guido D'Amico** (NYU)

*Photon-Axion conversion in cosmic light*

Feb. 9 (rescheduled to April 20)

**Tracy Slatyer** ( MIT)

*GeV Gamma-Rays from the Central Milky Way and the Case for Annihilating Dark Matter*

Feb. 23

**Aron Wall** (IAS)

*Quantum Extremal Surfaces*

Feb. 26 Special Seminar (note new location: Abelson 333)

**Eric Bergsheoff** (University of Groningen)

March 2 (to be rescheduled)

**Sarah Harrison** (Harvard)

*Moonshine and string theory*

March 9

**Matthew Headrick** (Brandeis)

*Ryu-Takayanagi without minimal surfaces*

March 16

**Martin Kruczenski** (Purdue University)

*Wilson loops and minimal area surfaces in hyperbolic space*

March 23

**Ilarion Melnikov** (Harvard)

*Moduli spaces for (0,2) QFTs*

March 30

**Tom Hartman** (Cornell)

*Conformal Field Theory in the Large-c Limit*

April 13

**Howard Schnitzer 80th Birthday Celebration**.

Talks held in Abelson 333 and Rosenstiel 118.

Schedule:

11am - 12:00pm, **Paul Townsend** (Cambridge University), *The Third Way to 3D Gauge Theory, (Abelson 333)
* 1:30pm - 2:30pm,

**Mark Schnitzer**(Stanford University),

*Reading neural codes, ~1000 cells at a time in behaving mice, (Rosenstiel 118)*

3:00pm - 4:00pm,

**Burt Ovrut**(University of Pennsylania),

*The Decoupling Theorem and the Supersymmetric B-L Model: from the Unification Scale to the LHC, (Abelson 333)*

4:30pm - 5:30pm,

**Marcus Spradlin (**Brown University),

*Scattering Amplitudes and Cluster Algebras, (Abelson 333)*

April 20

**Tracy Slatyer**( MIT)

*GeV Gamma-Rays from the Central Milky Way and the Case for Annihilating Dark Matter*

April 27

**Masoud Soroush**(Brandeis)

*Supersymmetry in Curved Backgrounds*

##### Fall 2015

Aug. 31

**Nima Lashkari** (MIT)

Host: Ida Zadeh

*Gravity dual of quantum Fisher information*

Thursday, Sept. 10

**Cesar Agon** (Brandeis)

*Quantum Corrections to Holographic Mutual Information*

Sept. 21

**Sasha Zhiboedov** (Harvard)

TBA

Host: Ida Zadeh

Tuesday, Sept. 29

**Ida Zadeh **(Brandeis)

*Higgsing the Stringy Higher Spin Symmetries*

Oct. 12

**Andrew Liam Fitzpatrick** (BU)

TBA

Host: Albion Lawrence

Oct. 19

**Sarah Harrison** (Harvard)

*Landau-Ginzburg orbifolds and symmetries of K3 CFTs*

Host: Albion Lawrence

Oct. 26

**Omer Ben-Ami** (Tel-Aviv University)

*Renormalization group flow of entanglement entropy on spheres*

Nov. 2

**Beni Yoshida** (Caltech)

Host: Ida Zadeh

*Chaos in quantum channels*

Nov. 9

**Swapnamay Mondal** (Harish-Chandra Research Institute)

*Black Hole microstate counting using pure D brane systems*

Host: Matthew Headrick

Nov. 16

**Mehrdad Mirbabayi** (IAS)

*Cosmological Consistency Conditions and Their Implications for CMB and Large Scale Structure*

Host: Ida Zadeh

Nov. 23

**Simon Gentle** (UCLA)

*Entanglement entropy of surface operators*

Host: Matthew Headrick

Nov. 30

**Brian Swingle** (Stanford)

*Complexity Equals Action*

Host: Matthew Headrick

Dec. 7

**Howard Schnitzer** (Brandeis)

*Renyi entropy for the SU(N)_1 WZW model on a torus
* Host: Ida Zadeh

##### Spring 2016

Wednesday, Jan.20

**Cindy Keeler** (Niels Bohr Institute)

*A caveat for applied holography*

Host: Ida Zadeh

Jan. 25

**Gerald Dunne** (UConn)

*Resurgence and Non-Perturbative Physics: Decoding the Path Integral*

Host: Ida Zadeh

Feb. 1

**Jessie Shelton** (UIUC)

*Asymmetric reheating and cold dark sectors*

Feb. 8

**Chris Herzog** (Stony Brook University)

*Tales from the Edge: Boundary Terms and Entanglement Entropy*

Host: Ida Zadeh

Feb. 22

**Tarek Anous** (MIT)

*Black Hole Collapse in the 1/c Expansion *

Host: Ida Zadeh

Feb. 29

**Mark Mueller** (MIT)

*Entanglement Entropy and Variational Methods in Interacting Quantum Field Theories*

Host: Ida Zadeh

March 7

**Brent Nelson** (Northeastern University)

*A Geometrical Approach to Particle Physics*

March 14

**Matthew Headrick** (Brandeis)

*Bit threads & holographic entanglemend, part II*

March 21

**Antal Jevicki** (Brown)

*Bi-Local Holography
* Host: Ida Zadeh

April 4

**Erik Tonni**(SISSA)

*Some geometrical aspects of entanglement*

*in CFT & Holography*

April 6 {Wednesday at 12:30pm, Abelson 229}

**Daniel Harlow**(Harvard)

*Subregion Duality and the Entanglement Wedge in AdS/CFT*

Host: Albion Lawrence

**Curtis Asplund**(Columbia University)

*De Sitter spaces emerging from entanglement in conformal field theories*

Host: Ida Zadeh

May 2

**Albion Lawrence**(Brandeis)

*Axion-driven inflation and quantum gravity*

##### Fall 2016

August 29

**Gregory S. Adkins** (Franklin and Marshall College)

*Effective field theory based calculation of positronium energy levels*

Host: Richard Fell

September 8

**Bogdan Stoica** (Brandeis)

*Tensor networks, p-adic fields, and algebraic curves: arithmetic and the AdS_3/CFT_2 correspondence*

Host: Matthew Headrick

September 12

**Gaston Giribet** (Brandeis & Univ. of Buenos Aires)

*Stringy horizons*

Host: Matthew Headrick

September 19

**Brian Swingle** (Brandeis & Harvard)

*What kinds of states can be prepared by Euclidean path integral?*

Host: Matthew Headrick

September 26

**Andrew Strominger** (Harvard)

*Area, Entanglement Entropy and Supertranslations at Null Infinity*

Host: Matthew Headrick

October 10

**Jennifer Lin** (IAS)

*Algebraic Entanglement Entropy and Holography*

Host: Bodgan Stoica

October 25

**Sam McCandlish, '12** (Stanford)

*A Stereoscopic Look into the Bulk*

Host: Matthew Headrick

October 31

**Netta Engelhardt** (Princeton)

*Into the Bulk: A Covariant Approach*

Host: Matthew Headrick

November 7

**Cesar Agon** (Brandeis)

*Comments on Entanglement Negativity for Free Fermions in 1+1 Dimensions*

Host: Matthew Headrick

November 14

**Washington Taylor** (MIT)

*Where in F-theory is the Supersymmetric Standard Model?*

Host: Matthew Headrick

November 21

**Harsha Hampapura** (Brandeis)

*Classification of Two-dimensional Rational Conformal Field Theories*

Host: Matthew Headrick

November 28

**Djordje Radicevic** (Perimeter)

*The Ergodicity Landscape of Quantum Theories*

Host: Bogdan Stoica

December 1

**Steven Gubser** (Princeton)

Joint IGERT/HEGT Seminar

*p-adic AdS/CFT*

Host: Albion Lawrence

##### Spring 2017

March 6

**Shinobu Hosono** (Gakushin University)

*Birational geometry from the moduli spaces of mirror CICYs*

Host: Albion Lawrence

March 27

**Harsha Hampapura** (Brandeis)

*The Large N Limit of the O(N) Model*

Host: Albion Lawrence

May 1

**Nishant Agrawal** (UMass Lowell)

*Early Universe cosmology with large-scale structure*

Host: Albion Lawrence

##### Fall 2018

Tuesday, September 4, 2018

**Christian Jepsen** (Princeton)

*p-Adic Holography*

Tuesday, September 11, 2018

No seminar (Rosh Hashanah)

Tuesday, September 18, 2018

**Sabrina Pasterski** (Harvard)

*Superrotations and Celestial Correlators*

Tuesday, September 25, 2018

No seminar (Brandeis Monday)

Tuesday, October 2, 2018

**Onkar Parrikar** (UPenn)

*Emergent classical spacetime from microstates of an incipient blackhole*

Tuesday, October 9, 2018

**Sergei Dubovsky** (New York University)

*Complementarity from Identity*

Tuesday, October 16, 2018

**Albion Lawrence** (Brandeis University)

*Effective field theory and quintessence*

Tuesday, October 23, 2018

**Jacopo Sisti** (SISSA)

*Holographic Entanglement Entropy in AdS_4/BCFT_3 and the Willmore Functional*

Tuesday, October 30, 2018

**Matthew Reece** (Harvard)

*Large Field Ranges, UV Cutoffs, and Photon Masses*

Tuesday, November 6, 2018

**Lampros Lamprou** (MIT)

*Entanglement Holonomies*

Tuesday, November 13, 2018

**Daniel Jafferis** (Harvard)

*Entanglement in 2D Gravity*

Tuesday, November 20, 2018

No seminar

Tuesday, November 27, 2018

**Nemanja Kaloper** (UC Davis)

*Λ*

Tuesday, December 4, 2018

No seminar

Tuesday, December 11, 2018

**Bogdan Stoica** (Brandeis University)

*Einstein equations from p-adic string*