Results 11 to 20 of about 142,241 (261)

Electron-ion coincidence measurements of molecular dynamics with intense X-ray pulses

open access: yesScientific Reports, 2021
Molecules can sequentially absorb multiple photons when irradiated by an intense X-ray pulse from a free-electron laser. If the time delay between two photoabsorption events can be determined, this enables pump-probe experiments with a single X-ray pulse,
Xiang Li   +19 more
doaj   +1 more source

Cooperative allostery and structural dynamics of streptavidin at cryogenic- and ambient-temperature

open access: yesCommunications Biology, 2022
Ayan et al. report two structures of the protein streptavidin - one at ambient temperature determined using serial femtosecond crystallography and a second one determined at cryogenic temperature.
Esra Ayan   +26 more
doaj   +1 more source

Vibrationally excited molecular hydrogen production from the water photochemistry

open access: yesNature Communications, 2021
Understanding the source of vibrationally excited molecular hydrogen is an essential prerequisite for understanding the chemical evolution in the universe.
Yao Chang   +11 more
doaj   +1 more source

Perfect and Quasi-Perfect Codes for the Bosonic Classical-Quantum Channel

open access: yesIEEE Transactions on Quantum Engineering, 2023
In this article, we explore perfect and quasi-perfect codes for the Bosonic channel, where information is generated by a laser and conveyed in the form of coherent states.
Andreu Blasco Coll, Javier R. Fonollosa
doaj   +1 more source

Entanglement between two superconducting garge qubits

open access: yesВестник Самарского университета: Естественнонаучная серия, 2023
In this paper, we investigated the dynamics of entanglement of two identical charge qubits with Josephson junctions in the case when one of the qubits is exposed to a microwave field in a coherent or thermal state. We have found the exact solution of the
Eugene K. Bashkirov
doaj   +1 more source

Three body photodissociation of the water molecule and its implications for prebiotic oxygen production

open access: yesNature Communications, 2021
Three-body dissociation of water, producing one oxygen and two hydrogen atoms, has been difficult to investigate due to the lack of intense vacuum ultraviolet sources.
Yao Chang   +16 more
doaj   +1 more source

Rotational and nuclear-spin level dependent photodissociation dynamics of H2S

open access: yesNature Communications, 2021
The photodissociation dynamics of small molecules in the vacuum ultraviolet range can have key implications for astrochemical modelling, but revealing such dynamical details is a challenging task.
Yarui Zhao   +14 more
doaj   +1 more source

Quantum Oscillator at Temperature T and the Evolution of a Charged-Particle State in the Electric Field in the Probability Representation of Quantum Mechanics

open access: yesEntropy, 2023
A short review constructing the probability representation of quantum mechanics is given, and examples of the probability distributions describing the states of quantum oscillator at temperature T and the evolution of quantum states of a charged particle
Margarita A. Man’ko   +1 more
doaj   +1 more source

‘Classical’ coherent state generated by curved surface

open access: yesNew Journal of Physics, 2022
Analogous coherent states are deduced from classical optical fields on curved surface in this paper. The Gaussian laser beam, as a fundamental mode, cannot be adequately simulated by coherent states due to their inherent diffraction in flat space. But it
Weifeng Ding, Zhaoying Wang
doaj   +1 more source

Photonic quantum chromodynamics

open access: yesFrontiers in Physics, 2023
Twisted photons with finite orbital angular momentum have a distinct mode profile with topological charge at the center of the mode while propagating in a certain direction.
Shinichi Saito
doaj   +1 more source

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