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of 195
pro vyhledávání: '"Wadia, Spenta R."'
In this paper we introduce a definition of time that emerges in terms of the geometry of the configuration space of a dynamical system. We illustrate this, using the Hamilton-Jacobi equation, in various examples: particle mechanics on a fixed energy
Externí odkaz:
http://arxiv.org/abs/2405.18486
We consider $\text{SU}(2)$ quantum chromodynamics in $1+1$ dimensions with a single quark in the spin $J$ representation of the gauge group and study the theory in the large $J$ limit where the gauge coupling $g^2 \to 0$ and $J \to \infty$ with $\lam
Externí odkaz:
http://arxiv.org/abs/2307.15015
We present a microscopic model of black hole (BH) `evaporation' in asymptotically $AdS_2$ spacetimes dual to the low energy sector of the SYK model. To describe evaporation, the SYK model is coupled to a bath comprising of $N_f$ free scalar fields $\
Externí odkaz:
http://arxiv.org/abs/2210.15579
Autor:
Jain, Sanjay, Wadia, Spenta R.
Publikováno v:
CURRENT SCIENCE, Vol.117, No. 7, 10 October 2019, pp. 1224 - 1231
This article summarizes some of the most important scientific contributions of Murray Gell-Mann (1929-2019). (Invited article for Current Science, Indian Academy of Sciences.)
Comment: 11 pages, 1 figure, 3 photographs
Comment: 11 pages, 1 figure, 3 photographs
Externí odkaz:
http://arxiv.org/abs/1909.07354
SYK model is a quantum mechanical model of fermions which is solvable at strong coupling and plays an important role as perhaps the simplest holographic model of quantum gravity and black holes. The present work considers a deformed SYK model and a s
Externí odkaz:
http://arxiv.org/abs/1812.03979
Publikováno v:
Physics News Vol 48, No 4, 2018, published by the Indian Physics Association
This year is the 100th birth anniversary of Richard Philips Feynman. This article commemorates his scientific contributions and lasting legacy.
Comment: 18 pages, 7 figures; V2 has an excerpt illustrating Feynman's interactions with students and
Comment: 18 pages, 7 figures; V2 has an excerpt illustrating Feynman's interactions with students and
Externí odkaz:
http://arxiv.org/abs/1810.07409
In this paper, we obtain a bulk dual to SYK model, including SYK model with $U(1)$ charge, by Kaluza-Klein (KK) reduction from three dimensions. We show that KK reduction of the 3D Einstein action plus its boundary term gives the Jackiw-Teitelboim (J
Externí odkaz:
http://arxiv.org/abs/1802.07746
The Nambu-Goldstone (NG) bosons of the SYK model are described by a coset space Diff/$\mathbb{SL}(2,\mathbb{R})$, where Diff, or Virasoro group, is the group of diffeomorphisms of the time coordinate valued on the real line or a circle. It is known t
Externí odkaz:
http://arxiv.org/abs/1702.04266
Autor:
Jain, Sachin, Mandlik, Mangesh, Minwalla, Shiraz, Takimi, Tomohisa, Wadia, Spenta R., Yokoyama, Shuichi
We present explicit computations and conjectures for $2 \to 2$ scattering matrices in large $N$ {\it $U(N)$} Chern-Simons theories coupled to fundamental bosonic or fermionic matter to all orders in the 't Hooft coupling expansion. The bosonic and fe
Externí odkaz:
http://arxiv.org/abs/1404.6373
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