Results 31 to 40 of about 178,933 (313)

Eigenstates Transition without Undergoing an Adiabatic Process [PDF]

open access: greenPhysical Review Letters, 2019
We introduce a class of non-Hermitian Hamiltonians that offers a dynamical approach to short-cut to adiabaticity (DASA). In particular, in our proposed 2 * 2 Hamiltonians, one eigenvalue is absolutely real and the other one is complex. This specific form of the eigenvalues helps us to exponentially decay the population in an undesired eigenfunction or ...
Fatemeh Mostafavi   +2 more
openalex   +6 more sources

Second Law Violation By Magneto-Caloric Effect Adiabatic Phase Transition of Type I Superconductive Particles

open access: yesEntropy, 2004
: The nature of the thermodynamic behavior of Type I superconductor particles, having a cross section less than the Ginzburg-Landau temperature dependent coherence length is discussed for magnetic field induced adiabatic phase transitions from the ...
Peter Keefe
doaj   +1 more source

Adiabaticity impact on hydrogen purification and recovery by pressure swing from binary mixture containing hydrogen and carbon dioxide

open access: yesChemical Engineering Journal Advances, 2023
Hydrogen purification by conventional adiabatic cylindrical column and non-adiabatic plate pressure swing adsorption (NAPSA) mediated by amorphous spent coffee grounds was investigated to study the impact of the two systems on hydrogen purity and ...
Hind Jihad Kadhim Shabbani   +4 more
doaj   +1 more source

Effect of Nonlinearity on Adiabatic Evolution of Light [PDF]

open access: yes, 2008
We investigate the effect of nonlinearity in a system described by an adiabatically evolving Hamiltonian. Experiments are conducted in a three-core waveguide structure that is adiabatically varying with distance, in analogy to the stimulated Raman ...
Christodoulides, DN   +5 more
core   +2 more sources

A deterministic cavity-QED source of polarization entangled photon pairs [PDF]

open access: yes, 2006
We present two cavity quantum electrodynamics proposals that, sharing the same basic elements, allow for the deterministic generation of entangled photons pairs by means of a three-level atom successively coupled to two single longitudinal mode high-Q ...
C. H. Bennet   +6 more
core   +3 more sources

Magnetic nanoparticles hyperthermia in a non-adiabatic and radiating process

open access: yesScientific Reports, 2021
We investigate the magnetic nanoparticles hyperthermia in a non-adiabatic and radiating process through the calorimetric method. Specifically, we propose a theoretical approach to magnetic hyperthermia from a thermodynamic point of view.
C. A. M. Iglesias   +16 more
doaj   +1 more source

Cosmic ray energy changes at the termination shock and in the heliosheath [PDF]

open access: yes, 2006
Voyager 1 crossed the termination shock of the solar wind in December 2004 at 94 AU and currently measures the cosmic ray intensity in the heliosheath. To better understand this modulation region beyond the shock, where adiabatic energy changes should be
Caballero-Lopez, R. A.   +6 more
core   +1 more source

Hypercomputation with quantum adiabatic processes

open access: yesTheoretical Computer Science, 2004
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +3 more sources

Landau–Zener evolution under weak measurement: manifestation of the Zeno effect under diabatic and adiabatic measurement protocols

open access: yesNew Journal of Physics, 2015
The time evolution and the asymptotic outcome of a Landau–Zener–Stueckelberg–Majorana (LZ) process under continuous weak non-selective measurement is analyzed.
Anna Novelli   +2 more
doaj   +1 more source

Multi-spin counter-diabatic driving in many-body quantum Otto refrigerators [PDF]

open access: yesQuantum, 2020
Quantum refrigerators pump heat from a cold to a hot reservoir. In the few-particle regime, counter-diabatic (CD) driving of, originally adiabatic, work-exchange strokes is a promising candidate to overcome the bottleneck of vanishing cooling power. Here,
Andreas Hartmann   +4 more
doaj   +1 more source

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