de Sitter space as a BRST invariant coherent state of gravitons [PDF]
Physical Review D, 2021 The $S$-matrix formulation indicates that a consistent embedding of de Sitter state in quantum gravity is possible exclusively as an excited quantum state constructed on top of a valid $S$-matrix vacuum such as Minkowski.
L. Berezhiani +2 more
semanticscholar +1 more source
Common Coherence Witnesses and Common Coherent States [PDF]
Entropy, 2021 We show the properties and characterization of coherence witnesses. We show methods for constructing coherence witnesses for an arbitrary coherent state. We investigate the problem of finding common coherence witnesses for certain class of states. We show that finitely many different witnesses W1,W2,⋯,Wn can detect some common coherent states if and ...
Bang-Hai Wang +3 more
openaire +5 more sources
Coherent control of a multi-qubit dark state in waveguide quantum electrodynamics [PDF]
Nature Physics, 2021 Superconducting qubits in a waveguide have long-range interactions mediated by photons that cause the emergence of collective states. Destructive interference between the qubits decouples the collective dark states from the waveguide environment.
Maximilian Zanner +7 more
semanticscholar +1 more source
Tuning the Coherent Propagation of Organic Exciton‐Polaritons through Dark State Delocalization [PDF]
Advancement of science, 2021 While there have been numerous reports of long‐range polariton transport at room‐temperature in organic cavities, the spatiotemporal evolution of the propagation is scarcely reported, particularly in the initial coherent sub‐ps regime, where photon and ...
Rajal Pandya +9 more
semanticscholar +1 more source
Electron-ion coincidence measurements of molecular dynamics with intense X-ray pulses
Scientific 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
Communications 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
Nature 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
IEEE 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
Quantifying the Coherence between Coherent States [PDF]
Physical Review Letters, 2017 8 pages, 2 ...
Tan, Kok Chuan +3 more
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Entanglement between two superconducting garge qubits
Вестник 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
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