Zobrazeno 1 - 10
of 416
pro vyhledávání: '"B., Prasanna"'
We study the collective dissipative dynamics of dipoles modeled as harmonic oscillators coupled to 1-D electromagnetic reservoirs. The bosonic nature of the dipole oscillators as well as the reservoir modes allows an exact numerical simulation of the
Externí odkaz:
http://arxiv.org/abs/2411.01664
We propose and analyze a universal method to obtain fast charging of a quantum battery by a driven charger system using controlled, pure dephasing of the charger. While the battery displays coherent underdamped oscillations of energy for weak charger
Externí odkaz:
http://arxiv.org/abs/2402.16999
Autor:
Shastri, Rahul, Venkatesh, B. Prasanna
We examine the role of diagnostic quantum measurements on the work statistics of a finite-time quantum Otto heat engine operated in the steady-state. We consider three pointer-based measurement schemes that differ in the number of system-pointer inte
Externí odkaz:
http://arxiv.org/abs/2308.13852
In this paper, we propose to develop a method to address unsupervised domain adaptation (UDA) in a practical setting of continual learning (CL). The goal is to update the model on continually changing domains while preserving domain-specific knowledg
Externí odkaz:
http://arxiv.org/abs/2304.07560
For a four-stroke asymmetrically driven quantum Otto engine with working medium modeled by a single qubit, we study the bounds on non-equilibrium fluctuations of work and heat. We find strict relations between the fluctuations of work and individual
Externí odkaz:
http://arxiv.org/abs/2208.05887
Publikováno v:
Phys. Rev. A 107, 023312 (2023)
Although crystallization is a ubiquitous phenomenon in nature, crystal formation and melting still remain fascinating processes with several open questions yet to be addressed. In this work, we study the emergent crystallization of a laser-driven dip
Externí odkaz:
http://arxiv.org/abs/2207.01650
Autor:
Shastri, Rahul, Venkatesh, B. Prasanna
We consider the optimization of the work output and fluctuations of a finite-time quantum Otto heat engine cycle consisting of compression and expansion work strokes of unequal duration. The asymmetry of the cycle is characterized by a parameter $r_u
Externí odkaz:
http://arxiv.org/abs/2204.04782
Quasi-periodic lattice systems offer diverse transport properties. In this work, we investigate the environment induced effects on transport properties for quasi-periodic systems, namely the one-dimensional Aubry-Andr\'e-Harper (AAH) lattice chain an
Externí odkaz:
http://arxiv.org/abs/2202.14033
We propose and analyze the theoretical model for a two-stroke quantum heat engine with one of the heat baths replaced by a non-selective quantum measurement. We show that the engine's invariant reference state depends on whether the cycle is monitore
Externí odkaz:
http://arxiv.org/abs/2201.06303
Publikováno v:
Phys. Rev. A 103, 023330 (2021)
We develop a theoretical scheme to perform a read-out of the properties of a quasi-periodic system by coupling it to one or two qubits. We show that the decoherence dynamics of a single qubit coupled via a pure dephasing type term to a 1D quasi-perio
Externí odkaz:
http://arxiv.org/abs/2009.12813