## Archive

### 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*

Dec. 11

**Chethan Gowdigere** (HRI Allahabad)

*Explicit Calabi-Yau metrics on resolved spaces*

### Spring 2009

** **Jan. 13

**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*

June 23

**Claudio Chamon** (Boston University)

*Why glasses? vs. universality in glassy dynamics*

### Fall 2009

Sept. 22

**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*

May 18

**Henriette Elvang** (University of Michigan)

*A new approach to counterterms in N=8 supergravity
*

### Spring 2011

January 25

**Xingang Chen** (Cambridge University)

*Strongly coupled inflation
*

March 15 **(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*

November 29

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*

April 26 at 3pm (Thursday)

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**(Milan)**

Alessandro Tomasiello

Alessandro Tomasiello

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*

Nov. 24

**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*