Physical Review A
Papers 10,000
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#1Neetik Mukherjee (IISER: Indian Institute of Science Education and Research Kolkata)H-Index: 9
#2Amlan K. Roy (IISER: Indian Institute of Science Education and Research Kolkata)H-Index: 23
Shell-confined atoms can serve as a generalized model to explain both the free and confined conditions. In this scenario, an atom is trapped inside two concentric spheres of inner ({R}_{a})and outer ({R}_{b})radii. The choice of {R}_{a}and {R}_{b}renders four different quantum-mechanical systems. In hydrogenic atoms, they are termed (i) the free hydrogen atom (FHA), (ii) the confined hydrogen atom, (iii) the shell-confined hydrogen atom (SCHA), and (iv) the left-confined hydrogen ato...
#1Neetik MukherjeeH-Index: 9
#2Chandra N. PatraH-Index: 18
Last. Amlan K. RoyH-Index: 23
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The behavior of H-like ions embedded in astrophysical plasmas in the form of dense, strongly and weakly coupled plasmas is investigated. In these, the increase and decrease in temperature are impacted by a change in confinement radius {r}_{c} Two independent and generalized scaling ideas have been applied to modulate the effect of the plasma-screening constant \ensuremath{\lambda}and ion charge Zon such systems. Several relations are derived to interconnect the original Hamiltonian and ...
#1Johannes Seiler (University of Ulm)H-Index: 3
#2Thomas Strohm (Robert Bosch)H-Index: 2
Last. Wolfgang P. Schleich (DLR: German Aerospace Center)H-Index: 52
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We show that for pure and mixed states the problem of maximizing the correlation measure in the Clauser-Horne-Shimony-Holt inequality reduces to maximizing the perimeter of a parallelogram enclosed by an ellipse characterized by the entanglement contained in the bipartite system. Our geometrical description is valid for a nonmaximally entangled state. We also determine the corresponding optimal measurements.
#1Jiazhao TianH-Index: 3
#2Tianyi DuH-Index: 2
Last. Jianming CaiH-Index: 22
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#1Qianqian Chen (HUST: Huazhong University of Science and Technology)H-Index: 1
#2Haibin LiuH-Index: 8
Last. Jianming Cai (HUST: Huazhong University of Science and Technology)H-Index: 22
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The features of topological physics can manifest in a variety of physical systems in distinct ways. Periodically driven systems, with the advantage of high flexibility and controllability, provide a versatile platform to simulate many topological phenomena and may lead to novel phenomena that cannot be observed in the absence of driving. Here we investigate the influence of realistic experimental noise on the realization of a two-level system under a two-frequency drive that induces topologicall...
#1Karol KoziołH-Index: 6
#1Philipp StammerH-Index: 2
Last. Felipe MoralesH-Index: 22
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We report on the appearance of a structure at low energies in the photoelectron momentum distribution of the hydrogen atom exposed to two-color counterrotating bicircular laser fields. These structures, which arise due to ac-Stark-shifted resonances, break the threefold symmetry, typical for the \ensuremath{\omega}\ensuremath{-}2\ensuremath{\omega}bicircular fields. We discuss the physical origin of this structure in terms of partial-wave interference between direct ionization channels and a ...
Last. Jia WangH-Index: 17
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#1Erik Lötstedt (UT: University of Tokyo)H-Index: 19
#2Marcelo F. CiappinaH-Index: 24
Last. Kaoru Yamanouchi (UT: University of Tokyo)H-Index: 40
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We study static-field ionization of He-like ions with nuclear charge number in the range of 2\ensuremath{\le}Z\ensuremath{\le}36 Both the tunneling and over-the-barrier regimes are considered. We calculate the ionization rates by three approximate methods: a fitting formula based on the Perelemov-Popov-Terent'ev (PPT) formula, a perturbative expansion in powers of 1/Z and a single-active electron approximation, and compare them with reference ionization rates computed by the multiconfigura...
#1Sneha Munshi (NITP: National Institute of Technology Patna)
#2Rahul Kumar (NITP: National Institute of Technology Patna)H-Index: 3
Last. Alok Kumar Pan (NITP: National Institute of Technology Patna)H-Index: 12
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Network Bell experiments reveal a form of nonlocality conceptually different from standard Bell nonlocality. Standard multiparty Bell experiments involve a single source shared by a set of observers. In contrast network Bell experiments feature multiple independent sources and each of them may distribute physical systems to a set of observers who perform randomly chosen measurements. The nlocality scenario in star-network configuration is an instance of network Bell experiment. Such a scenari...
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