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About 10,000 papers for “Dephasing”

Dephasing

Éric Akkermans, Gilles Montambaux · Cambridge University Press eBooks · 2007

Cited by 0

Dephasing

The Dictionary of Genomics, Transcriptomics and Proteomics · 2015

Cited by 0

Dephasing

Bernhard J. Bohn · Springer theses · 2021

Cited by 0

dephasing

2024

Citation: 'dephasing' in the IUPAC Compendium of Chemical Terminology, 5th ed.; International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.08232 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms. Requests for commercial usage of the compendium should be directed to IUPAC.

Cited by 0

Dephasing superchannels

Zbigniew Puchała, Kamil Korzekwa, Roberto Salazar et al. · Physical review. A/Physical review, A · 2021

The authors introduce dephasing superchannels, which describe environmental noises that act only on the quantum properties of a gate and leave the classical parts untouched. They develop a formalism to explore various properties of these superchannels, such as the effects they have on channel coherence, and propose a physical realization based on pre- and postprocessing operations with memory.

Cited by 0Open access

Towards a dephasing diode: asymmetric and geometric dephasing

Whitney, Robert S., Shnirman, Alexander, Gefen, Yuval · arXiv (Cornell University) · 2007

We study the effect of a noisy environment on spin and charge transport in ballistic quantum wires with spin-orbit coupling (Rashba coupling). We find that the wire then acts as a ``dephasing diode'', inducing very different dephasing of the spins of right and left movers. We also show how Berry phase (geometric phase) in a curved wire can induce such asymmetric dephasing, in addition to purely geometric dephasing. We propose ways to measure these effects through spin detectors, spin-echo techniques, and Aharanov-Bohm interferometry.

Cited by 0Open access

Towards a Dephasing Diode: Asymmetric and Geometric Dephasing

Robert S. Whitney, Alexander Shnirman, Yuval Gefen · Physical Review Letters · 2008

We study the effect of a noisy environment on spin and charge transport in ballistic quantum wires with spin-orbit coupling (Rashba coupling). We find that the wire then acts as a dephasing diode, inducing very different dephasing of the spins of right and left movers. We also show how Berry phase (geometric phase) in a curved wire can induce such asymmetric dephasing, in addition to purely geometric dephasing. We propose ways to measure these effects through spin detectors, spin-echo techniques, and Aharanov-Bohm interferometry.

Cited by 7Open access

net dephasing time

2024

Citation: 'net dephasing time' in the IUPAC Compendium of Chemical Terminology, 5th ed.; International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.08380 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms. Requests for commercial usage of the compendium should be directed to IUPAC.

Cited by 0

Dephasing-assisted macrospin transport

Iubini, S., Borlenghi, S., Delin, A. et al. · arXiv (Cornell University) · 2020

Transport phenomena are ubiquitous in physics, and it is generally understood that the environmental disorder and noise deteriorates the transfer of excitations. There are however cases in which transport can be enhanced by fluctuations. In the present work we show, by means of micromagnetics simulations, that transport efficiency in a chain of classical macrospins can be greatly increased by an optimal level of dephasing noise. We demonstrate also the same effect in a simplified model, the dissipative Discrete Nonlinear Schrödinger equation subject to phase noise. Our results point towards the realisation of a large class of magnonics and spintronics devices, where disorder and noise can be used to enhance spin-dependent transport efficiency.

Cited by 0Open access

Nonperturbative approach to collisional dephasing: Application to vibrational dephasing in liquids

D. Grimbert, Shaul Mukamel · The Journal of Chemical Physics · 1981

We develop a theory for the collisional dephasing of spectral lines in the binary collision approximation and in the Markovian (impact) limit of fast collisions. Making use of tetradic and dyadic scattering techniques we derive expressions for the line broadening which are nonperturbative in the potentials of interaction. We present some numerical applications corresponding to vibrational dephasing in liquids which show that for high temperatures, large masses, and short range interactions the nonperturbative corrections may be quite significant and may change the predictions of the binary collision models as to the variation of the dephasing rate with these parameters.

Cited by 5

Dephasing of Seismic Sections

Noll Moriarty, Stewart Greenhalgh · Exploration Geophysics · 1987

A perennial problem in the processing and interpretation of seismic data from the Cooper?Eromanga Basin is the estimation and subsequent removal of the wavelet phase. There are many non-geological factors such as vibrator coupling, geophone characteristics, anelastic absorption, instrument response and processing sequence which affect the wavelet phase.

Cited by 0

Suppressing relaxation through dephasing

T. Palm, P. Nalbach · Physical review. A/Physical review, A · 2021

We study the nonequilibrium dynamics of a quantum system under the influence of two noncommuting fluctuation sources, i.e., purely dephasing fluctuations and relaxational fluctuations. We find that increasing purely dephasing fluctuations suppress increasing relaxation in the quantum system. This effect is further enhanced when both fluctuation sources are fully correlated. These effects arise for medium to strong primary fluctuations already when the secondary fluctuations are weak due to their noncommuting coupling to the quantum system. Dephasing, in contrast, is increased by increasing any of the two fluctuations. Fully correlated fluctuations result in overdamping at much lower system-bath coupling than uncorrelated noncommuting fluctuations. In total, we observe that treating subdominant secondary environmental fluctuations perturbatively leads, as neglecting them, to erroneous conclusions.

Cited by 3

Dephasing from electron fractionalization

Hur, Karyn Le · arXiv (Cornell University) · 2005

We investigate the dephasing of mesoscopic interferences by electron-electron interactions in a strictly one-dimensional geometry composed of two weakly-coupled (clean and very long) Luttinger liquids. The main goal of this paper is to demonstrate that interactions in one dimension can produce a visible attenuation of Aharonov-Bohm oscillations. Through a Nyquist noise type description of the interactions and a direct (exact) calculation based on the Luttinger theory, in our setup we firmly emphasize that the dephasing time results from the electron fractionalization time.

Cited by 0Open access

Non-Abelian Geometric Dephasing

Kyrylo Snizhko, Reinhold Egger, Yuval Gefen · Physical Review Letters · 2019

We study the adiabatic dynamics of degenerate quantum states induced by loop paths in a control parameter space. The latter correspond to noisy trajectories if the system is weakly coupled to environmental modes. On top of conventional dynamic dephasing, we find a universal non-Abelian geometric dephasing (NAGD) contribution and express it in terms of the non-Abelian Berry connection and curvature. We show that NAGD implies either decay or amplification of coherences as compared to the coherences when only dynamic dephasing is present. The full NAGD matrix structure can be probed through interference experiments. We outline such a detection scheme for modified Majorana braiding setups.

Cited by 18Open access