[Seminars] REMINDER PARTICLE THEORY SEMINAR TOMORROW

[Ramona Echols]

REMINDER PARTICLE THEORY SEMINAR TOMORROW



Theory Group is inviting you to a scheduled Zoom meeting.

DATE: Wednesday, January 20th, 2020

TIME:  1:30 P.M. Central Time (US and Canada)

LOCATION: VIA ZOOM

SPEAKER: Justin Kaidi, SCGP

Title: "Adventures in Non-Supersymmetric String Theory"



Abstract: It has long been known that there exist strings with supersymmetry on the world sheet, but not in spacetime. These include the well-known Type 0 strings, as well as a series of seven heterotic strings, all of which are obtained by imposing unconventional GSO projections. Besides these classic examples, relatively little is known about the full space of non-SUSY theories. One of the reasons why non-SUSY strings have remained understudied is the fact that nearly all of them have closed string tachyons, and hence do not admit ten-dimensional flat space as a stable vacuum. The goal of this talk is two-fold. First, using recent advances in condensed matter theory, we will reinterpret GSO projections in terms of topological phases of matter, thereby providing a framework for the classification of non-SUSY strings. Having done so, we will show that for all non-SUSY theories in which a tachyon exists, it can be condensed to give a (meta)stable lower-dimensional vacuum. In many cases, these stable vacua will be two-dimensional string theories already known in the literature.



Upcoming Zoom Talks:

Kadanoff Seminar: Mukund Tangamani, UC Davis, Seminar Date, January 25th, Time: 1:30PM, Title: "Real-time gravitational replicas"

Particle Theory Seminar: Ana-Marie Raclariu, Perimeter, Seminar Date: January 27th, Time: 1:30PM, Title: "TBA"

Kadanoff Seminar: Aaron Hui, Cornell, Seminar Date, February 1st, Title: "Beyond Ohm’s law—Bernoulli effect and streaming in electron hydrodynamics"

Kadanoff Seminar: Yunfend Jiang, CERN,  Seminar Date, February 8th, Time: 1:30PM, Title: "TBA"

Kadanoff Seminar: Sid Parameswaran, Oxford, Seminar Date, March 1st, Time: 1:30PM, Title: "TBA"

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