Results 101 to 110 of about 128,075 (342)

Observation of quantum-classical transition behavior of LGI in a dissipative quantum gas

open access: yesPhysical Review Research
The Leggett-Garg inequality (LGI) is a powerful tool for distinguishing between quantum and classical properties in studies of macroscopic systems.
Qinxuan Peng   +6 more
doaj   +1 more source

Energy Dissipation and Fluctuation-Response in Driven Quantum Langevin Dynamics

open access: yes, 2008
Energy dissipation in a nonequilibrium steady state is studied in driven quantum Langevin systems. We study energy dissipation flow to thermal environment, and obtain a general formula for the average rate of energy dissipation using an autocorrelation ...
Keiji Saito   +9 more
core   +2 more sources

Dissipative Quantum Control

open access: yes, 2004
Nature, in the form of dissipation, inevitably intervenes in our efforts to control a quantum system. In this talk we show that although we cannot, in general, compensate for dissipation by coherent control of the system, such effects are not always counterproductive; for example, the transformation from a thermal (mixed) state to a cold condensed ...
Solomon, Allan I, Schirmer, Sonia G
openaire   +2 more sources

Scalable Thermal Engineering via Femtosecond Laser‐Direct‐Written Phononic Nanostructures

open access: yesAdvanced Functional Materials, EarlyView.
This study demonstrates that femtosecond laser‐induced periodic surface structures (fs‐LIPSS) can function as phononic metasurfaces, reducing thermal conductivity below the plain thin‐film limit. Phonon Monte Carlo analysis reveals that the periodic structures restrict phonon mean free paths.
Hiroki Hamma   +4 more
wiley   +1 more source

Stochastic semi-classical description of sub-barrier fusion reactions

open access: yesEPJ Web of Conferences, 2011
A semi-classical method that incorporates the quantum effects of the low-lying vibrational modes is applied to fusion reactions. The quantum effect is simulated by stochastic sampling of initial zero-point fluctuations of the surface modes.
Ayik Sakir, Yilmaz Bulent, Lacroix Denis
doaj   +1 more source

Imaging quantized vortex rings in superfluid helium to evaluate quantum dissipation. [PDF]

open access: yesNat Commun, 2023
Tang Y   +5 more
europepmc   +1 more source

Dissipative Quantum Metrology

open access: yes, 2019
5+ pages of main text, plus 6 pages of supplementary ...
Zhang, Da-Jian, Gong, Jiangbin
openaire   +2 more sources

Bio‐Inspired Molecular Events in Poly(Ionic Liquids)

open access: yesAdvanced Functional Materials, EarlyView.
Originating from dipolar and polar inter‐ and intra‐chain interactions of the building blocks, the topologies and morphologies of poly(ionic liquids) (PIL) govern their nano‐ and micro‐processibility. Modulating the interactions of cation‐anion pairs with aliphatic dipolar components enables the tunability of properties, facilitated by “bottom‐up ...
Jiahui Liu, Marek W. Urban
wiley   +1 more source

Kondo-Zeno crossover in the dynamics of a monitored quantum dot

open access: yesNature Communications
Continuously monitoring a quantum system can strongly affect its properties and even suppress its coherent evolution via the Quantum Zeno effect. Here we focus on one of the simplest entangled many-body state, arising via the Kondo effect in a strongly ...
Matthieu Vanhoecke, Marco Schirò
doaj   +1 more source

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