56 citations · 283 across the 18 of their papers we have counts for
11 papers · 1 filter
Universal non-equilibrium dynamics of pure states and density-dependent thermalization in Sachdev-Ye-Kitaev model
Rishik Perugu, Arijit Haldar, Sumilan Banerjee
Non-equilibrium dynamics of unentangled and entangled pure states in interacting quantum systems is crucial for harnessing quantum information and to understand quantum thermalizat…
Dynamical mean-field theory for Rényi entanglement entropy and mutual Information in Hubbard Model
Surajit Bera, Arijit Haldar, Sumilan Banerjee
Quantum entanglement, lacking any classical counterpart, provides a fundamental new route to characterize the quantum nature of many-body states. In this work, we discuss an implem…
Chiral Broken Symmetry Descendants of the Kagomé Lattice Chiral Spin Liquid
Anjishnu Bose, Arijit Haldar, Erik S. Sørensen +1
The breaking of chiral and time-reversal symmetries provides a pathway to exotic quantum phenomena and topological phases. In particular, the breaking of chiral (mirror) symmetry i…
Nematic phases and elastoresistivity from a multiorbital non-Fermi liquid
Andrew Hardy, Arijit Haldar, Arun Paramekanti
We propose and study a two-orbital lattice extension of the Sachdev-Ye-Kitaev model in the large- limit. The phase diagram of this model features a high temperature isotropic st…
Octupolar order and Ising quantum criticality tuned by strain and dimensionality: Application to -orbital Mott insulators
Sreekar Voleti, Arijit Haldar, Arun Paramekanti
Recent experiments have discovered multipolar orders in a variety of -orbital Mott insulators. Motivated by uncovering the exchange interactions which underlie octupolar order p…
Higher-order topology and corner triplon excitations in two-dimensional quantum spin-dimer models
Arijit Haldar, Geremia Massarelli, Arun Paramekanti
The concept of free fermion topology has been generalized to -dimensional phases that exhibit -dimensional boundary modes, such as zero-dimensional (0D) corner excitation…
Variational wavefunctions for Sachdev-Ye-Kitaev models
Arijit Haldar, Omid Tavakol, Thomas Scaffidi
Given a class of -local Hamiltonians, is it possible to find a simple variational state whose energy is a finite fraction of the ground state energy in the thermodynamic limit?…
Renyi entanglement entropy of Fermi liquids and non-Fermi liquids: Sachdev-Ye-Kitaev model and dynamical mean field theories
Arijit Haldar, Surajit Bera, Sumilan Banerjee
We present a new method for calculating Renyi entanglement entropies for fermionic field-theories originating from microscopic Hamiltonians. The method builds on an operator identi…
Quench, thermalization and residual entropy across a non-Fermi liquid to Fermi liquid transition
Arijit Haldar, Prosenjit Haldar, Surajit Bera +2
We study the thermalization, after sudden and slow quenches, of an interacting model having a quantum phase transition from a Sachdev-Ye-Kitaev (SYK) non-Fermi liquid (NFL) to a Fe…
Higher-dimensional SYK Non-Fermi Liquids at Lifshitz transitions
Arijit Haldar, Sumilan Banerjee, Vijay B. Shenoy
We address the key open problem of a higher dimensional generalization of the Sachdev-Ye-Kitaev (SYK) model. We construct a model on a lattice of SYK dots with non-random intersite…
Strange Half Metals and Mott Insulators in SYK Models
Arijit Haldar, Vijay B. Shenoy
We study a dual flavor fermion model where each of the flavors form a Sachdev-Ye-Kitaev (SYK) system with arbitrary and possibly distinct -body interactions. The crucial new ele…