7 citations · 22 across the 12 of their papers we have counts for
14 papers
Fermionic non-Gaussianity via computable measures and experimentally accessible bounds
Leela Ganesh Chandra Lakkaraju, Naga Dileep Varikuti, Philipp Hauke
Interacting fermions owe both their non-trivial correlations and their computational power to their departure from Gaussianity. Yet, quantifying that departure geometrically faces…
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…
Disorder-averaged Qudit Dynamics
Gopal Chandra Santra, Philipp Hauke
Understanding how physical systems are influenced by disorder is a fundamental challenge in quantum science. Addressing its effects often involves numerical averaging over a large…
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…
Genuine Multipartite Entanglement in Quantum Optimization
Gopal Chandra Santra, Sudipto Singha Roy, Daniel J. Egger +1
The ability to generate bipartite entanglement in quantum computing technologies is widely regarded as pivotal. However, the role of genuinely multipartite entanglement is much les…
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…
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…