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Technion-Haifa University String Theory Group

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  • Members
  • Publications
  • Activities
    • Seminars
    • Conferences
    • Visitors
  • Resources
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  • Home
  • Members
  • Publications
  • Activities
    • Seminars
    • Conferences
    • Visitors
  • Resources
  • Prospective students

Seminars

During the semester we have a high energy seminar and a lunch seminar. In addition to these two seminars we participate in a joint theoretical high energy theory seminar in Newe Shalom. The joint seminar takes place on Tuesdays from 10:30 until 13:30 and includes two talks and lunch. This seminar is attended by the high energy groups of all the Israeli institutions and usually attracts a crowd of roughly twenty participants.

  • Categories
    Neve Shalom
    Journal club
    Local seminar
Month
Agenda
Day
Month
Week
2020 Nov December 2021 Jan 2022
Sun Mon Tue Wed Thu Fri Sat
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High Energy Physics Seminar, Akhil Sivakumar , Title: Fluctuating Hydrodynamics from holography 11:30 am
High Energy Physics Seminar, Akhil Sivakumar , Title: Fluctuating Hydrodynamics from holography
Dec 6 @ 11:30 am – 12:30 pm
Tickets
A
7
Micha Berkooz 4:00 pm
Micha Berkooz
Dec 7 @ 4:00 pm – 5:00 pm
Tickets
Title: Multi-trace correlators in the SYK model and Non-geometric wormholesAbstract: We consider the global fluctuations in the density of states of the SYK model, which are much larger than the standard RMT correlations. We provide a diagrammatic description …
8
9
10
11
12
13
High Energy Physics Seminar, Gadi Afek, Title: Precision searches for new physics using optically levitated sensors 11:30 am
High Energy Physics Seminar, Gadi Afek, Title: Precision searches for new physics using optically levitated sensors
Dec 13 @ 11:30 am – 1:00 pm
Tickets
A
14
Shai Chester 10:30 am
Shai Chester
Dec 14 @ 10:30 am – 11:30 am
Tickets
Title: Bootstrapping N = 4 super-Yang-Mills on the conformal manifoldAbstract: We study the N = 4 SYM stress tensor multiplet 4-point function for any value of the complexified coupling tau, and in principle any gauge group (we focus on SU(2) and …
Ritam Sinha 12:00 pm
Ritam Sinha
Dec 14 @ 12:00 pm – 1:00 pm
Tickets
Title: Thermal Order in 3dAbstract:  Our intuitive understanding of thermodynamics suggests that broken global symmetries in the stable vacuum of a physical system, get restored at high temperatures. We construct a unitary, UV-complete 3d QFT that instead exhibits a spontaneous breaking of …
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20
High Energy Physics Seminar, Ben Ohayon, Title: Precision measurements in exotic atoms 11:30 am
High Energy Physics Seminar, Ben Ohayon, Title: Precision measurements in exotic atoms
Dec 20 @ 11:30 am – 1:00 pm
Tickets
A
21
Gregory Tarnopolsky 4:00 pm
Gregory Tarnopolsky
Dec 21 @ 4:00 pm – 5:00 pm
Tickets
Title: Conformal operators in SYK-like models and their numerical effectsAbstract: Quantum mechanical models with random interactions have an infinite number of bilinear operators, the scaling dimensions of which can be computed explicitly in the large N …
22
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High Energy Physics Seminar, Shaouly Bar Shalom, Title: Multi-lepton probes of new physics 11:30 am
High Energy Physics Seminar, Shaouly Bar Shalom, Title: Multi-lepton probes of new physics
Dec 27 @ 11:30 am – 1:00 pm
Tickets
A
28
Amihay Hanany 10:30 am
Amihay Hanany
Dec 28 @ 10:30 am – 11:30 am
Tickets
Title: Magnetic Quivers, Phase Diagrams, and Physics at Strongly Coupled Quantum Field TheoriesAbstract: Quiver gauge theories experienced a breakthrough in activity through two important concepts, called “magnetic quivers” and “Hasse (phase) diagrams”. The first helps understanding …
High Energy Physics Seminar, Nadav Priel, Title: Non-Newtonian Gravity and Neutrality of Matter Searches with Levitated Test Masses 1:30 pm
High Energy Physics Seminar, Nadav Priel, Title: Non-Newtonian Gravity and Neutrality of Matter Searches with Levitated Test Masses
Dec 28 @ 1:30 pm – 2:30 pm
Tickets
A
29
30
31
2020 Nov December 2021 Jan 2022
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  • Categories
    Neve Shalom
    Journal club
    Local seminar
Agenda
Agenda
Day
Month
Week
December 2021 – January 2022 Dec 2021 – Jan 2022
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Dec
14
Tue
Shai Chester
Tickets
Dec 14 @ 10:30 am – 11:30 am

Title: Bootstrapping N = 4 super-Yang-Mills on the conformal manifold

Abstract: We study the N = 4 SYM stress tensor multiplet 4-point function for any value of the complexified coupling tau, and in principle any gauge group (we focus on SU(2) and SU(3) for simplicity). By combining non-perturbative constraints from the numerical bootstrap with two exact constraints from supersymmetric localization, we are able to compute upper bounds on low-lying CFT data (e.g. the Konishi) for any value of tau. These upper bounds are very close to the 4-loop weak coupling predictions in the appropriate regime. We also give preliminary evidence that these upper bounds become small islands under reasonable assumptions, in which case our method would provide a numerical solution to N = 4 SYM for any gauge group and tau.

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Categories: Neve Shalom
Ritam Sinha
Tickets
Dec 14 @ 12:00 pm – 1:00 pm

Title: Thermal Order in 3d

Abstract:  Our intuitive understanding of thermodynamics suggests that broken global symmetries in the stable vacuum of a physical system, get restored at high temperatures. We construct a unitary, UV-complete 3d QFT that instead exhibits a spontaneous breaking of continuous symmetries at all temperatures. Our model consists of two copies of the long-range vector model, with O(m) and O(N−m) global symmetry groups, perturbed by double-trace deformations. The model exhibits a conformal manifold in the large rank limit, that is lifted by 1/N corrections. A certain class of IR fixed points are shown to undergo SSB at finite temperature, with the pattern persisting to all temperatures due to scale-invariance. We provide evidence that the models in question are unitary, UV-complete, as well as invariant under conformal symmetry. Our work adds to the growing list of models that display persistent symmetry breaking (PSB), and discusses the necessary conditions for the models to display such a behaviour.

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Categories: Neve Shalom
Dec
20
Mon
High Energy Physics Seminar, Ben Ohayon, Title: Precision measurements in exotic atoms
Tickets
Dec 20 @ 11:30 am – 1:00 pm

A

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Categories: Local seminar
Dec
21
Tue
Gregory Tarnopolsky
Tickets
Dec 21 @ 4:00 pm – 5:00 pm

Title: Conformal operators in SYK-like models and their numerical effects

Abstract: Quantum mechanical models with random interactions have an infinite number of bilinear operators, the scaling dimensions of which can be computed explicitly in the large N limit. The lowest dimension operators play an important role in thermodynamical properties of these models and define the behavior of various correlation functions in the infrared limit. In this talk I’ll show that some SYK-like models have operators with unusual anomalous dimensions. I also demonstrate how they can be observed in numerical computations.

Based on works with Maria Tikhanovskaya, Haoyu Guo and Subir Sachdev

https://arxiv.org/abs/2010.09742
https://arxiv.org/abs/2012.14449

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Categories: Neve Shalom
Dec
27
Mon
High Energy Physics Seminar, Shaouly Bar Shalom, Title: Multi-lepton probes of new physics
Tickets
Dec 27 @ 11:30 am – 1:00 pm

A

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Categories: Local seminar
Dec
28
Tue
Amihay Hanany
Tickets
Dec 28 @ 10:30 am – 11:30 am

Title: Magnetic Quivers, Phase Diagrams, and Physics at Strongly Coupled Quantum Field Theories

Abstract: Quiver gauge theories experienced a breakthrough in activity through two important concepts, called “magnetic quivers” and “Hasse (phase) diagrams”. The first helps understanding the physics of strongly coupled gauge theories and exotic theories with tensionless strings in 6d or with massless gauge instants in 5d. The second gives an invaluable information about the phase structure of gauge theories, in analogy with phases of water. The talk will review these developments and explain their significance.

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Categories: Neve Shalom
High Energy Physics Seminar, Nadav Priel, Title: Non-Newtonian Gravity and Neutrality of Matter Searches with Levitated Test Masses
Tickets
Dec 28 @ 1:30 pm – 2:30 pm

A

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Categories: Local seminar
Jan
4
Tue
Zohar Komargodski
Tickets
Jan 4 @ 10:30 am – 11:30 am

Title: Some aspects of line defects in d dimensions

Abstract: We consider renormalization group flows on line defects in d dimensions. We define a “defect entropy” and argue that it decreases monotonically during RG flows. We apply this result to line defects which appear in condensed matter and high energy physics, including magnetic (SPT) defects, localized field defects, and Wilson loops. In some of these cases we make some new experimental predictions and in the case of Wilson lines we make some comparisons with localization and holography. 

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Categories: Neve Shalom
Jan
5
Wed
High Energy Physics Seminar, Oren Slone, Title: Probing Dark Sector Physics with Galactic Substructure
Tickets
Jan 5 @ 12:30 pm – 1:45 pm

A

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Categories: Local seminar
Jan
10
Mon
High Energy Physics Seminar, Ran Itay, Title: MicroBooNE’s new results from the deep-learning-based 2-body CCQE search for an electron neutrino excess
Tickets
Jan 10 @ 11:30 am – 12:45 pm

A

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Categories: Local seminar
December 2021 – January 2022 Dec 2021 – Jan 2022
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