Zobrazeno 1 - 10
of 103
pro vyhledávání: '"Narayan, Prithvi"'
We study the gravitational edge mode of the Jackiw-Teitelboim (JT) gravity and its $sl(2,\mathbb{R})$ BF theory description with the asymptotic AdS$_2$ boundary condition. We revisit the derivation of the Schwarzian theory from the wiggling boundary
Externí odkaz:
http://arxiv.org/abs/2304.06088
Autor:
Narayan, Prithvi, S, Swathi T
We discuss the double scaling limit of the SYK model with global symmetries. We develop the chord diagram techniques to compute the moments of the Hamiltonian and the two point function in the presence of arbitrary chemical potential. We also derive
Externí odkaz:
http://arxiv.org/abs/2302.11882
Publikováno v:
Phys. Rev. A 110, 032408 (2024)
In this paper, we calculate entanglement in the isotropic Heisenberg model in a magnetic field on a two-dimensional rectangular zig-zag lattice in the strong rung-coupling limit, using the one-dimensional XXZ model as a proxy. Focusing on the leading
Externí odkaz:
http://arxiv.org/abs/2301.04615
We study the double-scaling limit of SYK (DS-SYK) model and elucidate the underlying quantum group symmetry. The DS-SYK model is characterized by a parameter $q$, and in the $q\rightarrow 1$ and low-energy limit it goes over to the familiar Schwarzia
Externí odkaz:
http://arxiv.org/abs/2212.13668
In this paper, we write exactly solvable generalizations of 1-dimensional quantum XY and Ising-like models by using $2^d$-dimensional Gamma ($\Gamma$) matrices as the degrees of freedom on each site. We show that these models result in quadratic Ferm
Externí odkaz:
http://arxiv.org/abs/2201.06588
Autor:
Narayan, Prithvi, Yoon, Junggi
We discuss $SL(N,\mathbb{C})$ Chern-Simons higher spin gauge theories in Euclidean AdS$_3$. With appropriate boundary term, we derive the higher spin generalization of Schwarzian on-shell action. We investigate gravitationally dressed bi-locals, and
Externí odkaz:
http://arxiv.org/abs/1903.08761
The exact 2-point function of certain physically motivated operators in SYK-like spin glass models is computed, bypassing the Schwinger-Dyson equations. The models possess an IR low energy conformal window, but our results are exact at all time scale
Externí odkaz:
http://arxiv.org/abs/1806.04380
Autor:
Geracie, Michael, Haehl, Felix M., Loganayagam, R., Narayan, Prithvi, Ramirez, David M., Rangamani, Mukund
Publikováno v:
Phys. Rev. D 97, 105023 (2018)
We examine, in a quantum mechanical setting, the Hilbert space representation of the BRST symmetry associated with Schwinger-Keldysh path integrals. This structure had been postulated to encode important constraints on influence functionals in coarse
Externí odkaz:
http://arxiv.org/abs/1712.04459
Autor:
Narayan, Prithvi, Yoon, Junggi
In this paper, we introduce an $\mathcal{N}=1$ supersymmetric SYK model with $SO(q)$ global symmetry. We study the large $N$ expansion of the bi-local collective action of our model. At strong coupling limit, this model exhibits a super-reparametriza
Externí odkaz:
http://arxiv.org/abs/1712.02647
Autor:
Lal, Shailesh, Narayan, Prithvi
The microscopic formula for the degeneracy of BMPV black hole microstates contains a series of exponentially suppressed corrections to the leading Bekenstein Hawking expression. We identify saddle points of the quantum entropy function for the BMPV b
Externí odkaz:
http://arxiv.org/abs/1710.10914