Results 11 to 20 of about 34,205 (212)

Quantum Revivals in Curved Graphene Nanoflakes

open access: yesNanomaterials, 2022
Graphene nanostructures have attracted a lot of attention in recent years due to their unconventional properties. We have employed Density Functional Theory to study the mechanical and electronic properties of curved graphene nanoflakes.
Sergio de-la-Huerta-Sainz   +2 more
doaj   +5 more sources

Quantum state revivals in quantum walks on cycles

open access: yesResults in Physics, 2014
Recurrence in the classical random walk is well known and described by the Pólya number. For quantum walks, recurrence is similarly understood in terms of the probability of a localized quantum walker to return to its origin.
Phillip R. Dukes
doaj   +3 more sources

Full-revivals in 2-D Quantum Walks [PDF]

open access: yesPhysica Scripta, 2010
Recurrence of a random walk is described by the Polya number. For quantum walks, recurrence is understood as the return of the walker to the origin, rather than the full-revival of its quantum state.
B Kollár   +6 more
core   +2 more sources

Quantum Revivals in a Periodically Driven Gravitational Cavity [PDF]

open access: yesJournal of Optics B: Quantum and Semiclassical Optics, 2000
Quantum revivals are investigated for the dynamics of an atom in a driven gravitational cavity. It is demonstrated that the external driving field influences the revival time significantly.
Abramowitz M   +13 more
core   +4 more sources

Interferometry of quantum revivals

open access: yesThe Journal of Chemical Physics, 2022
It has recently been shown that an interferometric approach can be used to obtain Auger lifetimes in molecules in certain point groups. Here, we extend this concept to those molecular states for which Auger decay is energetically forbidden and which exhibit initial quasi-exponential decay followed by quantum revivals. We demonstrate that this allows us
J. Tarrant, M. Khokhlova, V. Averbukh
openaire   +2 more sources

Optical computing of quantum revivals

open access: yesOptics Express, 2022
Interference is the mechanism through which waves can be structured into the most fascinating patterns. While for sensing, imaging, trapping, or in fundamental investigations, structured waves play nowadays an important role and are becoming the subject of many interesting studies.
M. R. Maia   +4 more
openaire   +3 more sources

Hectometer Revivals of Quantum Interference [PDF]

open access: yesPhysical Review Letters, 2018
Cavity-enhanced single photon sources exhibit mode-locked biphoton states with comb-like correlation functions. Our ultrabright source additionally emits either single photon pairs or two-photon NOON states, dividing the output into an even and an odd comb respectively. With even-comb photons we demonstrate revivals of the typical non-classical Hong-Ou-
Rambach, Markus   +5 more
openaire   +6 more sources

Loss-Induced Quantum Revival

open access: yes, 2022
Conventional wisdom holds that quantum effects are fragile and can be destroyed by loss. Here, contrary to general belief, we show how to realize quantum revival of optical correlations at the single-photon level with the help of loss. We find that, accompanying loss-induced transparency of light in a nonlinear optical-molecule system, quantum ...
Zuo, Yunlan   +4 more
openaire   +2 more sources

Relativistic Quantum Revivals [PDF]

open access: yesPhysical Review Letters, 2010
Quantum revivals are now a well-known phenomena within nonrelativistic quantum theory. In this Letter we display the effects of relativity on revivals and quantum carpets. It is generally believed that revivals do not occur within a relativistic regime. Here we show that while this is generally true, it is possible, in principle, to set up wave packets
openaire   +2 more sources

Giant atoms with time-dependent couplings

open access: yesPhysical Review Research, 2022
We study the decay dynamics of a two-level giant atom that is coupled to a waveguide with time-dependent coupling strengths. In the non-Markovian regime where the retardation effect cannot be ignored, we show that the dynamics of the atom depends on the ...
Lei Du   +3 more
doaj   +1 more source

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