Results 31 to 40 of about 949,044 (283)

Enhancing Acceleration Radiation from Ground-State Atoms via Cavity Quantum Electrodynamics [PDF]

open access: yes, 2003
When ground state atoms are accelerated through a high Q microwave cavity, radiation is produced with an intensity which can exceed the intensity of Unruh acceleration radiation in free space by many orders of magnitude.
Alexey Belyanin   +20 more
core   +3 more sources

Dipotassium zinc tetraiodate(V) dihydrate

open access: yesActa Crystallographica Section E, 2010
The title compound, K2Zn(IO3)4·2H2O, contains two symmetry-independent K and I atoms. These atoms, as well as the Zn atom, are coordinated by shared O atoms and, moreover, the Zn atom is coordinated by two water molecules in trans positions. The
Ivana Císařová   +2 more
doaj   +1 more source

Field-Theoretical Representation of Interactions between Particles: Classical Relativistic Probability-Free Kinetic Theory

open access: yesUniverse, 2022
It was proven that the class of stable interatomic potentials can be represented exactly as a superposition of Yukawa potentials. In this paper, an auxiliary scalar field was introduced to describe the dynamics of a system of neutral particles (atoms) in
Anatoly Yu. Zakharov, Victor V. Zubkov
doaj   +1 more source

Ground-State Spaces of Frustration-Free Hamiltonians

open access: yes, 2011
We study the ground-state space properties for frustration-free Hamiltonians. We introduce a concept of `reduced spaces' to characterize local structures of ground-state spaces. For a many-body system, we characterize mathematical structures for the set $
Bei Zeng   +10 more
core   +1 more source

Driving atoms into decoherence-free states

open access: yesNew Journal of Physics, 2000
12 pages, 3 figures, more detailed version, accepted for publication in New Journal of Physics, see http://www.njp.org/
Beige, A, Braun, D, Knight, PL
openaire   +4 more sources

Vibrational modes and spectrum of oscillators on a scale-free network

open access: yes, 2004
We study vibrational modes and spectrum of a model system of atoms and springs on a scale-free network in order to understand the nature of excitations with many degrees of freedom on the scale-free network.
A.-L. Barabási   +9 more
core   +1 more source

Effect of polarity and steric on the rate addition of free radicals to Alkenes [PDF]

open access: yesKirkuk Journal of Science, 2009
In this investigation, the effective factors on the addition rate for hydroxy methyl and cynomethyl free radicals to some alkenes have been studied using quantum mechanics methods. Where in this study, physical properties like the electron density on the
Najla.J. Khalil, Mostafa.R. Aeyd
doaj   +1 more source

Shadow-free multimers as extreme-performance meta-atoms

open access: yes, 2017
We generalize the concept of parity-time symmetric structures with the goal to create meta-atoms exhibiting extraordinary abilities to overcome the presumed limitations in the scattering of overall lossless particles, such as non-zero forward scattering ...
Albooyeh, M.   +3 more
core   +1 more source

Confinement effects in a guided-wave interferometer with millimeter-scale arm separation

open access: yes, 2007
Guided-wave atom interferometers measure interference effects using atoms held in a confining potential. In one common implementation, the confinement is primarily two-dimensional, and the atoms move along the nearly free dimension under the influence of
B. Deissler   +4 more
core   +1 more source

Optimal building block of multipartite quantum battery in the driven-dissipative charging

open access: yesNew Journal of Physics, 2021
To take quantum advantage of collective effects in many-body system, we design an elementary block for building a quantum battery with the optimal number of atoms in a common thermal bath, which is charged collectively by a harmonic driving.
Wei Chang   +5 more
doaj   +1 more source

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