Zobrazeno 1 - 10
of 238
pro vyhledávání: '"Kulkarni, Manas"'
Wave dynamics in disordered open media is an intriguing topic, and has lately attracted a lot of attention in non-Hermitian physics, especially in photonics. In fact, spatial distributions of gain and loss elements are physically possible in the cont
Externí odkaz:
http://arxiv.org/abs/2410.09185
Understanding open quantum systems using information encoded in its complex eigenvalues has been a subject of growing interest. In this paper, we study higher-order gap ratios of the singular values of generic open quantum systems. We show that $k$-t
Externí odkaz:
http://arxiv.org/abs/2410.08590
We study nonequilibrium steady state (NESS) transport in a boundary driven one-dimensional fermionic lattice setup which is further subjected to particle loss. We analyze the system size scaling of conductance at zero temperature for different values
Externí odkaz:
http://arxiv.org/abs/2408.14399
In lattice models with quadratic finite-range Hermitian Hamiltonians, the inherently non-Hermitian transfer matrix (TM) governs the band dispersion. The van Hove singularities (VHSs) are special points in the band dispersion where the density of stat
Externí odkaz:
http://arxiv.org/abs/2408.10103
We study the nonequilibrium stationary state (NESS) induced by quantum resetting of a system of $N$ noninteracting bosons in a harmonic trap. Our protocol consists of preparing initially the system in the ground state of a harmonic oscillator centere
Externí odkaz:
http://arxiv.org/abs/2407.20342
Recently, it has been shown that, in one dimensional fermionic systems, close to band edges, the zero temperature conductance scales as $1/N^2$, where $N$ is the system length. This universal subdiffusive scaling of conductance at band edges has been
Externí odkaz:
http://arxiv.org/abs/2407.10884
We consider a one-dimensional fermionic lattice system with long-ranged power-law decaying hopping with exponent $\alpha$. The system is further subjected to dephasing noise in the bulk. We investigate two variants of the problem: (i) an open quantum
Externí odkaz:
http://arxiv.org/abs/2406.00768
Autor:
Ray, Tamoghna, Kulkarni, Manas
We investigate two key aspects of quantum systems by using the Tavis-Cummings dimer system as a platform. The first aspect involves unraveling the relationship between the phenomenon of self-trapping (or lack thereof) and integrability (or quantum ch
Externí odkaz:
http://arxiv.org/abs/2404.13653
Autor:
Kethepalli, Jitendra, Kulkarni, Manas, Kundu, Anupam, Majumdar, Satya N., Mukamel, David, Schehr, Grégory
We investigate the full counting statistics (FCS) of a harmonically confined 1d short-range Riesz gas consisting of $N$ particles in equilibrium at finite temperature. The particles interact with each other through a repulsive power-law interaction w
Externí odkaz:
http://arxiv.org/abs/2403.18750
We consider an analytically tractable model that exhibits the main features of the Page curve characterizing the evolution of entanglement entropy during evaporation of a black hole. Our model is a gas of non-interacting fermions on a lattice that is
Externí odkaz:
http://arxiv.org/abs/2402.18422