Results 21 to 30 of about 34,205 (212)

Weak ergodicity breaking in non-Hermitian many-body systems

SciPost Physics, 2023
The recent discovery of persistent revivals in the Rydberg-atom quantum simulator has revealed a weakly ergodicity-breaking mechanism dubbed quantum many-body scars, which are a set of nonthermal states embedded in otherwise thermal spectra.
Qianqian Chen, Shuai A. Chen, Zheng Zhu
doaj   +1 more source

Optimal control of quantum revival [PDF]

The European Physical Journal B, 2013
Increasing fidelity is the ultimate challenge of quantum information technology. In addition to decoherence and dissipation, fidelity is affected by internal imperfections such as impurities in the system. Here we show that the quality of quantum revival, i.e., periodic recurrence in the time evolution, can be restored almost completely by coupling the
Räsänen Esa, Räsänen Esa
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Room-temperature coherent revival in an ensemble of quantum dots

Physical Review Research, 2021
We demonstrate the hallmark concept of periodic collapse and revival of coherence in a room-temperature ensemble of quantum dots (QDs) in the form of a 1.5-mm-long optical amplifier.
Igor Khanonkin, Ori Eyal, Johann Peter Reithmaier, Gadi Eisenstein   +3 more
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Sudden death and revival of Gaussian Einstein–Podolsky–Rosen steering in noisy channels

npj Quantum Information, 2021
Einstein–Podolsky–Rosen (EPR) steering is a useful resource for secure quantum information tasks. It is crucial to investigate the effect of inevitable loss and noise in quantum channels on EPR steering.
Xiaowei Deng, Yang Liu, Meihong Wang, Xiaolong Su, Kunchi Peng   +4 more
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Quantum revivals and magnetization tunneling in effective spin systems

New Journal of Physics, 2016
Quantum mechanical objects or nano-objects have been proposed as bits for information storage. While time-averaged properties of magnetic, quantum-mechanical particles have been extensively studied experimentally and theoretically, experimental ...
M Krizanac, D Altwein, E Y Vedmedenko, R Wiesendanger   +3 more
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Dynamical quantum phase transitions in collapse and revival oscillations of a quenched superfluid [PDF]

, 2018
In this work we revisit collapse and revival oscillations in superfluids suddenly quenched by strong local interactions for the case of a one-dimensional Bose-Hubbard model.
Heyl, Markus, Lacki, Mateusz
core   +2 more sources

Quantum wave-packet revivals in circular billiards [PDF]

Physical Review A, 2002
21 pages, 4 ...
Robinett, R. W., Heppelmann, S.
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Revivals imply quantum many-body scars [PDF]

Physical Review B, 2020
We derive general results relating revivals in the dynamics of quantum many-body systems to the entanglement properties of energy eigenstates. For a D-dimensional lattice system of N sites initialized in a low-entangled and short-range correlated state, our results show that a perfect revival of the state after a time at most poly(N) implies the ...
Alhambra, Álvaro M., Anshu, Anurag, Wilming, Henrik   +2 more
openaire   +4 more sources

Coherent states for exactly solvable potentials [PDF]

, 2003
A general algebraic procedure for constructing coherent states of a wide class of exactly solvable potentials e.g., Morse and P{\"o}schl-Teller, is given.
A. Chenaghlou, A. Frank, A. Gangopadhyaya, A. Jellal, A. ten Wolde, A.H. Kinani, A.O. Barut, B. Roy, B. Sutherland, C. Brif, C.C. Gerry, E.A. Shapiro, E.C.G. Sudarshan, F. Cooper, F. Grobmann, G.S. Agarwal, G.S. Agarwal, H. Fakhri, H. Mack, H.C. Fu, I.Sh. Averbukh, J. Ahn, J. Banerji, J.A. Yeazell, J.A. Yeazell, J.P. Antoine, J.P. Gazeau, J.R. Klauder, J.R. Klauder, J.R. Klauder, M.G. Benedict, M.G.A. Crawford, M.G.A. Crawford, M.J.W. Hall, M.M. Nieto, M.M. Nieto, M.M. Nieto, M.M. Nieto, M.M. Nieto, M.S. Child, M.S. Safronova, N. Ba An, N. Gurappa, N. Gurappa, N. Gurappa, O.V. Man’ko, P. Jensen, P. Majumdar, P. Shanta, Prasanta K. Panigrahi, R. Bluhm, R. Bluhm, R.F. Fox, R.J. Glauber, R.L. de Filho, S. Mancini, S.A. Polshin, S.J. van Enk, T. Shreecharan, V.I. Man’ko, W.H. Zurek, W.M. Zhang, X.G. Wang, Z.D. Gaeta   +63 more
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Relaxation and revival of quasiparticles injected in an interacting quantum Hall liquid

Nature Communications, 2020
Quantum Hall phases have chiral edge modes, which could be used to explore and exploit the quantum properties of electrons. Interactions in these edge states lead to relaxation and decoherence, hindering any realistic exploitation.
R. H. Rodriguez, F. D. Parmentier, D. Ferraro, P. Roulleau, U. Gennser, A. Cavanna, M. Sassetti, F. Portier, D. Mailly, P. Roche   +9 more
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