46 citations · 330 across the 28 of their papers we have counts for
28 papers
Disorder-Induced Enhancement of Fermionic Superradiance
David Pascual Solis, Andrea Legramandi, Soumik Bandyopadhyay +1
Collective light-matter phenomena such as Dicke superradiance are often described as a collection of effective spins coupled homogeneously to a bosonic mode, giving rise to a colle…
Observable signatures of exceptional points from left-right eigenstate distinction
Leela Ganesh Chandra Lakkaraju, Soumik Bandyopadhyay, Sudipto Singha Roy +1
Non-Hermitian quantum systems exhibit qualitatively distinct physical behavior compared to Hermitian systems, a prime example being spectral singularities known as exceptional poin…
Quantum simulation using Trotterized disorder Hamiltonians in a single-mode optical cavity
Rahel Lea Baumgartner, Pietro Pelliconi, Soumik Bandyopadhyay +4
All-to-all interacting and disordered many-body systems are notoriously hard to simulate on quantum platforms, as interactions are commonly mediated by auxiliary degrees of freedom…
Deep Thermalization and Measurements of Quantum Resources
Naga Dileep Varikuti, Soumik Bandyopadhyay, Philipp Hauke
Quantum resource theories provide a unified framework for characterizing useful quantum phenomena subject to physical constraints, but are notoriously hard to assess in experimenta…
From single-particle to many-body chaos in Yukawa--SYK: theory and a cavity-QED proposal
David Pascual Solis, Alex Windey, Soumik Bandyopadhyay +2
Understanding how quantum systems transition from integrable to fully chaotic behavior remains a central open problem in physics. The Sachdev--Ye--Kitaev (SYK) model provides a par…
Impact of Clifford operations on non-stabilizing power and quantum chaos
Naga Dileep Varikuti, Soumik Bandyopadhyay, Philipp Hauke
Non-stabilizerness, alongside entanglement, is a crucial ingredient for fault-tolerant quantum computation and achieving a genuine quantum advantage. Despite recent progress, a com…
Complexity transitions in chaotic quantum systems: Nonstabilizerness, entanglement, and fractal dimension in SYK and random matrix models
Gopal Chandra Santra, Alex Windey, Soumik Bandyopadhyay +2
Complex quantum systems -- composed of many, interacting particles -- are intrinsically difficult to model. When a quantum many-body system is subject to disorder, it can undergo t…
Many-body spectral transitions through the lens of the variable-range SYK2 model
Andrea Legramandi, Soumik Bandyopadhyay, Philipp Hauke
The Sachdev-Ye-Kitaev (SYK) model is a cornerstone in the study of quantum chaos and holographic quantum matter. Real-world implementations, however, deviate from the idealized all…
Quantum simulation of the Sachdev-Ye-Kitaev model using time-dependent disorder in optical cavities
Rahel Baumgartner, Pietro Pelliconi, Soumik Bandyopadhyay +5
The Sachdev--Ye--Kitaev (SYK) model is a paradigm for extreme quantum chaos, non-Fermi-liquid behavior, and holographic matter. Yet, the dense random all-to-all interactions that c…
Quantifying non-Hermiticity using single- and many-particle quantum properties
Soumik Bandyopadhyay, Philipp Hauke, Sudipto Singha Roy
The non-Hermitian paradigm of quantum systems displays salient features drastically different from Hermitian counterparts. In this work, we focus on one such aspect, the difference…
Miscibility-Immiscibility transition of strongly interacting bosonic mixtures in optical lattices
Rukmani Bai, Soumik Bandyopadhyay
Interaction plays key role in the mixing properties of a multi-component system. The miscibility-immiscibility transition (MIT) in a weakly interacting mixture of Bose gases is pre…
Unraveling the emergence of quantum state designs in systems with symmetry
Naga Dileep Varikuti, Soumik Bandyopadhyay
Quantum state designs, by enabling an efficient sampling of random quantum states, play a quintessential role in devising and benchmarking various quantum protocols with broad appl…
Unveiling Eigenstate Thermalization for Non-Hermitian systems
Sudipto Singha Roy, Soumik Bandyopadhyay, Ricardo Costa de Almeida +1
The eigenstate thermalization hypothesis (ETH) has been highly influential in explaining thermodynamic behavior of closed quantum systems. As of yet, it is unclear whether and how…
A cavity quantum electrodynamics implementation of the Sachdev--Ye--Kitaev model
Philipp Uhrich, Soumik Bandyopadhyay, Nick Sauerwein +3
The search for a quantum theory of gravity has led to the discovery of quantum many-body systems that are dual to gravitational models with quantum properties. The perhaps most fam…
Absence of operator growth for average equal-time observables in charge-conserved sectors of the Sachdev-Ye-Kitaev model
Alessio Paviglianiti, Soumik Bandyopadhyay, Philipp Uhrich +1
Quantum scrambling plays an important role in understanding thermalization in closed quantum systems. By this effect, quantum information spreads throughout the system and becomes…
Engineering random spin models with atoms in a high-finesse cavity
Nick Sauerwein, Francesca Orsi, Philipp Uhrich +6
All-to-all interacting, disordered quantum many-body models have a wide range of applications across disciplines, from spin glasses in condensed-matter physics, over holographic du…
Universal equilibration dynamics of the Sachdev-Ye-Kitaev model
Soumik Bandyopadhyay, Philipp Uhrich, Alessio Paviglianiti +1
Equilibrium quantum many-body systems in the vicinity of phase transitions generically manifest universality. In contrast, limited knowledge has been gained on possible universal c…
Quantum phases of dipolar bosons in multilayer optical lattice
Soumik Bandyopadhyay, Hrushikesh Sable, Deepak Gaur +3
We consider a minimal model to investigate the quantum phases of hardcore, polarized dipolar atoms confined in multilayer optical lattices. The model is a variant of the extended B…
Quantum quench dynamics of tilted dipolar bosons in 2D optical lattices
Hrushikesh Sable, Deepak Gaur, Soumik Bandyopadhyay +2
We investigate the quench dynamics of the dipolar bosons in two dimensional optical lattice of square geometry using the time dependent Gutzwiller method. The system exhibits diffe…
Segregated quantum phases of dipolar bosonic mixtures in two-dimensional optical lattices
Rukmani Bai, Deepak Gaur, Hrushikesh Sable +3
We identify the quantum phases in a binary mixture of dipolar bosons in two-dimensional optical lattices. Our study is motivated by the recent experimental realization of binary di…
Quantum Hall states for in optical lattices
Rukmani Bai, Soumik Bandyopadhyay, Sukla Pal +2
We examine the quantum Hall (QH) states of the optical lattices with square geometry using Bose-Hubbard model (BHM) in presence of artificial gauge field. In particular, we focus o…
Quantum phases of tilted dipolar bosons in two-dimensional optical lattice
Soumik Bandyopadhyay, Rukmani Bai, Sukla Pal +3
We consider a minimal model to describe the quantum phases of ultracold dipolar bosons in two-dimensional (2D) square optical lattices. The model is a variation of the extended Bos…
Dynamics of the creation of a rotating Bose-Einstein condensate by two-photon Raman transition using Laguerre-Gaussian pulse
Koushik Mukherjee, Soumik Bandyopadhyay, D. Angom +2
We examine the dynamics associated with the creation of a vortex in a Bose-Einstein condensate (BEC), from another nonrotating BEC using two-photon Raman transition with Gaussian (…
Supersolid phase of the extended Bose-Hubbard model with an artificial gauge field
K. Suthar, Hrushikesh Sable, Rukmani Bai +3
We examine the zero and finite temperature phase diagrams of soft-core bosons of the extended Bose-Hubbard model on a square optical lattice. To study various quantum phases and th…