Results 61 to 70 of about 441,267 (345)

Quantum dynamics in a tiered non-Markovian environment [PDF]

, 2015
We introduce a new analytical method for studying the open quantum systems problem of a discrete system weakly coupled to an environment of harmonic oscillators.
Benjamin, Simon C., Lovett, Brendon W., Fruchtman, A., Lovett, B.W., Fruchtman, Amir, Gauger, E.M., Gauger, Erik M.; id_orcid, Benjamin, S.C.   +7 more
core   +1 more source

Dissipative Floquet Dynamics: from Steady State to Measurement Induced Criticality in Trapped-ion Chains [PDF]

, 2022
Quantum systems evolving unitarily and subject to quantum measurements exhibit various types of non-equilibrium phase transitions, arising from the competition between unitary evolution and measurements.
Sierant, Piotr, Dalmonte, Marcello, Pagano, Guido, Chiriacò, Giuliano, Fazio, Rosario, Surace, Federica M., Sharma, Shraddha, Turkeshi, Xhek   +7 more
core   +1 more source

Metastable quantum entrainment

New Journal of Physics, 2021
Quantum van der Pol oscillators are driven-dissipative systems displaying quantum synchronization phenomena. When forced by a squeezed drive, the frequency adjusts to half of the forcing displaying multiple preferred phases.
Albert Cabot, Gian Luca Giorgi, Roberta Zambrini   +2 more
doaj   +1 more source

Quantum behavior of the Duffing oscillator at the dissipative phase transition

Nature Communications, 2023
The non-deterministic behavior of the Duffing oscillator is classically attributed to the coexistence of two steady states in a double-well potential. However, this interpretation fails in the quantum-mechanical perspective which predicts a single unique
Qi-Ming Chen, Michael Fischer, Yuki Nojiri, Michael Renger, Edwar Xie, Matti Partanen, Stefan Pogorzalek, Kirill G. Fedorov, Achim Marx, Frank Deppe, Rudolf Gross   +10 more
doaj   +1 more source

Rapid quantum ground state preparation via dissipative dynamics [PDF]

Inspired by natural cooling processes, dissipation has become a promising approach for preparing low-energy states of quantum systems. However, the potential of dissipative protocols remains unclear beyond certain commuting Hamiltonians.
Yongtao Zhan, Zhiyan Ding, J. Huhn, J. Gray, John Preskill, Garnet Kin-Lic Chan, Lin Lin   +6 more
semanticscholar   +1 more source

Stochastic Liouville, Langevin, Fokker–Planck, and Master Equation Approaches to Quantum Dissipative Systems

, 2006
Half century has past since the pioneering works of Anderson and Kubo on the stochastic theory of spectral line shape were published in J. Phys. Soc. Jpn. 9 (1954) 316 and 935, respectively.
Y. Tanimura
semanticscholar   +1 more source

Hamiltonian and Liouvillian learning in weakly-dissipative quantum many-body systems [PDF]

Quantum Science and Technology
We discuss Hamiltonian and Liouvillian learning for analog quantum simulation from non-equilibrium quench dynamics in the limit of weakly dissipative many-body systems.
Tobias Olsacher, Tristan Kraft, C. Kokail, Barbara Kraus, Peter Zoller   +4 more
semanticscholar   +1 more source

Dissipative quantum mechanics using GENERIC [PDF]

, 2012
Pure quantum mechanics can be formulated as a Hamiltonian system in terms of the density matrix. Dissipative effects are modeled via coupling to a macroscopic system, where the coupling operators act via commutators.
Alexander Mielke, Mielke, Alexander
core   +1 more source

Many-body open quantum systems

SciPost Physics Lecture Notes
These lecture notes discuss the recent theoretical advances in the understanding of open quantum many-body physics in platforms where both dissipative and coherent processes can be tuned and controlled to a high degree.
Rosario Fazio, Jonathan Keeling, Leonardo Mazza, Marco Schirò
doaj   +1 more source

Quantum backflow for dissipative two-identical-particle systems

Results in Physics, 2020
In this work, dissipative quantum backflow is studied for a superposition of two stretched Gaussian wave packets and two identical spinless particles within the Caldirola-Kanai framework.
S.V. Mousavi, S. Miret-Artés
doaj   +1 more source