Results 91 to 100 of about 43,026 (285)

Dynamic generation of spin-squeezed states in bosonic Josephson junctions

open access: yes, 2012
We analyze the formation of squeezed states in a condensate of ultracold bosonic atoms confined by a double-well potential. The emphasis is set on the dynamical formation of such states from initially coherent many-body quantum states.
Juliá-Díaz, B.   +5 more
core   +1 more source

Research progress and current status of dynamic wave propagation characteristics in rock mass: A review

open access: yesDeep Underground Science and Engineering, EarlyView.
This review elucidates the velocity–dispersion–attenuation coupling mechanisms of wave propagation in rock masses, compares six representative models, and reveals how pressure, temperature, mineral composition, and anisotropy jointly control dynamic responses in complex geological media.
Jiajun Shu   +8 more
wiley   +1 more source

Transforming squeezed light into a large amplitude coherent state superposition

open access: yes, 2014
A quantum superposition of two coherent states of light with small amplitude can be obtained by subtracting a photon from a squeezed vacuum state. In experiments this preparation can be made conditioned on the detection of a photon in the field from a ...
Anne E. B. Nielsen   +2 more
core   +1 more source

Algebraic Coherent States and Squeezing

open access: yes, 1996
Eigenstates of general complex linear combination of SU(1,1) generators (su^c(1,1) algebraic coherent states (ACS)) are constructed and discussed. In case of quadratic boson representation ACS can exhibit strong both linear and quadratic amplitude squeezing. ACS for a given Lie group algebra contain the corresponding Perelomov CS with maximal symmetry.
openaire   +2 more sources

Mechanism and disaster control new technology of strong ground pressure manifestation in ultra‐large mining face

open access: yesDeep Underground Science and Engineering, EarlyView.
In response to the problem of strong mining pressure manifestation along the goaf roadway in a thick coal seam mining area, this study uses a new type of combined blasting roof cutting technology to effectively control the manifestation and deformation of mining pressure along the goaf roadway.
Xiaoding Xu   +6 more
wiley   +1 more source

Study on the Influence of Slope Static Load on Shallow Lining Support Structure

open access: yesEnergy Science &Engineering, EarlyView.
On the basis of the background of the shallow‐buried main adit supported by stone lining, the mechanical model of the supporting structure is constructed, and the stability of the supporting structure is analyzed by using the methods of field investigation, theoretical analysis, and numerical simulation.
Hongwei Wang   +3 more
wiley   +1 more source

Entanglement of Grassmannian Coherent States for Multi-Partite n-Level Systems

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2011
In this paper, we investigate the entanglement of multi-partite Grassmannian coherent states (GCSs) described by Grassmann numbers for n>2 degree of nilpotency.
Ghader Najarbashi, Yusef Maleki
doaj   +1 more source

Overcoming decoherence of Schrödinger cat states formed in a cavity using squeezed-state inputs

open access: yesPhysical Review Research, 2020
A cat state is a superposition of two coherent states with amplitudes α_{0} and −α_{0}. Recent experiments create cat states in a microwave cavity field using superconducting circuits.
R. Y. Teh, P. D. Drummond, M. D. Reid
doaj   +1 more source

Corporate Psychopaths as Risk Factors: The Role of Managerial Control and Competition for Risk Governance

open access: yesStrategic Change, EarlyView.
ABSTRACT The increasing prevalence of corporate scandals and dysfunction linked to psychopathic leaders has prompted significant research into the drivers and effects of psychopathy in business. This paper examines corporate psychopathy, focusing on individuals with extreme selfishness, callousness, and manipulative behavior who often achieve ...
Florian Fuchs
wiley   +1 more source

Non-Gaussian state preparation and enhancement using weak-value amplification

open access: yesnpj Quantum Information
We introduce a protocol for generating non-Gaussian (nG) states via postselected weak measurement. The scheme involves injecting an arbitrary quantum state and a single photon into the signal and idler ports of an interferometer with a third-order ...
Xiao-Xi Yao, Yusuf Turek
doaj   +1 more source

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