Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Chakraborty, A."'
Publikováno v:
Physical Review A. 104
Quantum speed limit (QSL) for open quantum systems in the non-Markovian regime is analyzed. We provide a the lower bound for the time required to transform an initial state to a final state in terms of thermodynamic quantities such as the energy fluc
Autor:
Shantanav Chakraborty, Yosi Atia
Publikováno v:
Physical Review A. 104
Continuous-time quantum walks have proven to be an extremely useful framework for the design of several quantum algorithms. Often, the running time of quantum algorithms in this framework is characterized by the quantum hitting time: the time require
Publikováno v:
Physical Review A, 102 (2
The problem of sampling from the stationary distribution of a Markov chain finds widespread applications in a variety of fields. The time required for a Markov chain to converge to its stationary distribution is known as the classical mixing time. In
Publikováno v:
Physical Review A. 99
We study the relation between lack of Information Backflow and completely positive divisibility (CP divisibility) for non-invertible qubit dynamical maps. Recently, these two concepts were shown to be fully equivalent for the so called image non-incr
Publikováno v:
Physical Review A. 99
We revisit the problem of detection of entanglement of an unknown two-qubit state using minimal resources. Using weak values and just two copies of an arbitrary two-qubit state, we present a protocol where a post selection measurement in the computat
Publikováno v:
Physical Review A. 94
A Kohn-Sham time-dependent local-density-functional scheme is utilized to predict attosecond time delays of xenon 4d photoionization that involves the 4d giant dipole resonance and Cooper minimum. The fundamental effect of electron correlations to un
Autor:
David A. Mazziotti, Romit Chakraborty
Publikováno v:
Physical Review A. 89
The Pauli exclusion principle requires the spectrum of the occupation numbers of the one-electron reduced density matrix (1-RDM) to be bounded by one and zero. However, for a 1-RDM from a wave function, there exist additional conditions on the spectr
Autor:
B. J. DeSalvo, Pascal Mickelson, Thomas Killian, Rupak Chakraborty, M. Yan, Y. N. Martinez de Escobar, A. Mazurenko
Publikováno v:
Physical Review A. 83
We describe a model of inelastic and elastic collisional dynamics of atoms in an optical dipole trap that utilizes numerical evaluation of statistical mechanical quantities and numerical solution of equations for the evolution of number and temperatu
Publikováno v:
Physical Review A. 67
Effects of the interchannel coupling on the spin polarization of energetic photoelectrons emitted from atomic Ne valence subshells are examined. Like previously obtained results for cross sections and angular distributions, the photoelectron spin pol