Efficient calculation of open quantum system dynamics and time‐resolved spectroscopy with distributed memory HEOM (DM‐HEOM)
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Computational Chemistry"
DOI: 10.1002/jcc.25354
Abstract: Time‐ and frequency‐resolved optical signals provide insights into the properties of light‐harvesting molecular complexes, including excitation energies, dipole strengths and orientations, as well as in the exciton energy flow through the complex. The hierarchical equations… read more here.
Keywords: heom; system; system dynamics; quantum system ... See more keywords
Theoretical Investigation of Tunable Goos-Hänchen Shifts in a Four-Level Quantum System
Sign Up to like & getrecommendations! Published in 2018 at "International Journal of Theoretical Physics"
DOI: 10.1007/s10773-018-3763-x
Abstract: Goos-Hänchen (GH) shifts in the reflected and transmitted light have been discussed in a cavity with four-level quantum system. It is realized that the refraction index of intracavity medium can be negative by manipulating the… read more here.
Keywords: level quantum; nchen shifts; goos nchen; quantum system ... See more keywords
Cryptanalysis of secret sharing with a single d-level quantum system
Sign Up to like & getrecommendations! Published in 2018 at "Quantum Information Processing"
DOI: 10.1007/s11128-018-1988-5
Abstract: In this work, we point out that the multiparty secret sharing protocol of Tavakoli et al. (Phys Rev A 92:030302, 2015) based on a single d-level quantum system (where d is a prime number) is… read more here.
Keywords: level quantum; quantum system; single level; secret sharing ... See more keywords
Dirac potential in the Doebner-Goldin equation
Sign Up to like & getrecommendations! Published in 2018 at "Annals of Physics"
DOI: 10.1016/j.aop.2017.11.005
Abstract: Abstract We study a dissipative quantum system which is described by the Doebner–Goldin equation (DGE) model. For time-independent states, the new three-dimensional analytical solutions of the DGE are obtained by binding the vertical relation of… read more here.
Keywords: goldin equation; system; quantum system; dirac potential ... See more keywords
Adiabatic following for a three-state quantum system
Sign Up to like & getrecommendations! Published in 2017 at "Optics Communications"
DOI: 10.1016/j.optcom.2016.07.067
Abstract: Abstract Adiabatic time-evolution – found in various forms of adiabatic following and adiabatic passage – is often advantageous for controlled manipulation of quantum systems due to its insensitivity to deviations in the pulse shapes and… read more here.
Keywords: state; quantum; adiabatic following; state quantum ... See more keywords
Holevo-type bounds for general quantum system
Sign Up to like & getrecommendations! Published in 2017 at "Reports on Mathematical Physics"
DOI: 10.1016/s0034-4877(18)30006-5
Abstract: We consider an arbitrary von Neumann algebra with a finite trace as mathematical setup for a general quantum system. Three measures of dependence of states on measurements are presented. We indicate estimates of the mutual… read more here.
Keywords: quantum system; type bounds; holevo type; general quantum ... See more keywords
Direct entropy measurement in a mesoscopic quantum system
Sign Up to like & getrecommendations! Published in 2018 at "Nature Physics"
DOI: 10.1038/s41567-018-0250-5
Abstract: The entropy of an electronic system offers important insights into the nature of its quantum mechanical ground state. This is particularly valuable in cases where the state is difficult to identify by conventional experimental probes,… read more here.
Keywords: quantum; system; direct entropy; quantum system ... See more keywords
Wilson-Racah quantum system
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Mathematical Physics"
DOI: 10.1063/1.4975138
Abstract: Using a recent formulation of quantum mechanics without a potential function, we present a four-parameter system associated with the Wilson and Racah polynomials. The continuum scattering states are written in terms of the Wilson polynomials… read more here.
Keywords: wilson racah; quantum system; quantum; racah quantum ... See more keywords
Collisional dynamics of a few atom quantum system with tunable interaction
Sign Up to like & getrecommendations! Published in 2023 at "Physica Scripta"
DOI: 10.1088/1402-4896/acd72a
Abstract: The advent of single-atom trapping in optical tweezers and experimental evolution in control, isolation, and manipulation of cold atoms allows us to manifest the few-body physics and its connection with the many-body systems. In cold… read more here.
Keywords: system tunable; physics; collisional dynamics; dynamics atom ... See more keywords
Model for calorimetric measurements in an open quantum system
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review A"
DOI: 10.1103/physreva.97.052107
Abstract: We investigate the experimental setup proposed in [New J. Phys., 15, 115006 (2013)] for calorimetric measurements of thermodynamic indicators in an open quantum system. As theoretical model we consider a periodically driven qubit coupled with… read more here.
Keywords: calorimetric measurements; system; calorimeter; quantum system ... See more keywords
Entanglement front generated by an impurity traveling in an isolated many-body quantum system
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review B"
DOI: 10.1103/physrevb.101.085139
Abstract: We investigate the effect on the entanglement dynamics of an impurity moving at constant velocity in a closed quantum system. We focus on one-dimensional strongly-correlated lattice models, both in the presence of integrable and chaotic… read more here.
Keywords: entanglement front; generated impurity; front generated; impurity ... See more keywords