97 citations · 278 across the 11 of their papers we have counts for
12 papers · 1 filter
Fate of "Space-like singularities" in Matrix Model
Sumit R. Das, Shaun D. Hampton, Sinong Liu +1
A class of time dependent backgrounds in two dimensional String Theory leads to superluminal Liouville walls on the worldsheet. In the dual double scaled matrix model these b…
Superluminal Liouville walls in 2d String Theory and space-like singularities
Sumit R. Das, Shaun D. Hampton, Sinong Liu
An interesting class of time dependent backgrounds in dimensional string theory involves worldsheet Liouville walls which move in (target space) time. When a parameter in suc…
Spread Complexity and Topological Transitions in the Kitaev Chain
Pawel Caputa, Nitin Gupta, S. Shajidul Haque +3
A number of recent works have argued that quantum complexity, a well-known concept in computer science that has re-emerged recently in the context of the physics of black holes, ma…
Quantum complexity and topological phases of matter
Pawel Caputa, Sinong Liu
In this work, we find that the complexity of quantum many-body states, defined as a spread in the Krylov basis, may serve as a new probe that distinguishes topological phases of ma…
Entanglement Entropy and Phase Space Density: Lowest Landau Levels and 1/2 BPS states
Sumit R. Das, Shaun Hampton, Sinong Liu
We consider the entanglement entropy of an arbitrary subregion in a system of non-relativistic fermions in dimensions in Lowest Landau Level (LLL) states. Using the conne…
Gauge Invariant Target Space Entanglement in D-Brane Holography
Sumit R. Das, Anurag Kaushal, Sinong Liu +2
It has been suggested in arXiv:2004.00613 that in Dp-brane holography, entanglement in the target space of the D-brane Yang-Mills theory provides a precise notion of bulk entanglem…
Quantum Quench in Matrix Model and Emergent Space-times
Sumit R. Das, Shaun Hampton, Sinong Liu
We consider quantum quench in large-N singlet sector quantum mechanics of a single hermitian matrix in the double scaling limit. The time dependent parameter is the self-coupling o…
Quantum Quench in Non-relativistic Fermionic Field Theory: Harmonic traps and 2d String Theory
Sumit R. Das, Shaun Hampton, Sinong Liu
We investigate a class of exactly solvable quantum quench protocols with a finite quench rate in systems of one dimensional non-relativistic fermions in external harmonic oscillato…
Complexity and scaling in quantum quench in dimensional fermionic field theories
Sinong Liu
We consider the scaling behavior of circuit complexity under quantum quench in an a relativistic fermion field theory on a one dimensional spatial lattice. This is done by finding…
Inspecting non-perturbative contributions to the Entanglement Entropy via wavefunctions
Arpan Bhattacharyya, Ling-Yan Hung, P. H. C. Lau +1
In this paper, we would like to systematically explore the implications of non-perturbative effects on entanglement in a many body system. Instead of pursuing the usual path-integr…
Exploring the Tensor Networks/AdS Correspondence
Arpan Bhattacharyya, Zhe-Shen Gao, Ling-Yan Hung +1
In this paper we study the recently proposed tensor networks/AdS correspondence. We found that the Coxeter group is a useful tool to describe tensor networks in a negatively curved…
First Law of Entanglement Entropy vs Black Hole Entropy in an Anomalous Theory
Long Cheng, Ling-Yan Hung, Si-Nong Liu +1
In this note we explore the validity of the first law of entanglement entropy in the context of the topologically massive gravity (TMG). We found that the variation of the holograp…