Results 11 to 20 of about 4,915,138 (308)
Physical Review A, 1993 The basic concept of squeezed spin states is established and the principles for their generation are discussed. Two proposed mechanisms, referred to as one-axis twisting and two-axis countertwisting, are shown to reduce the standard quantum noise S/2 of the coherent S-spin state down to 1/2(S/3${)}^{1/3}$ and 1/2, respectively.
Kitagawa, Masahiro, Ueda, Masahito
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Squeezed and Entangled Gluon States in QCD Jet
EPJ Web of Conferences, 2016 Theoretical justification for the occurrence of multimode squeezed and entan-gled colour states in QCD is given. We show that gluon entangled states which are closely related with corresponding squeezed states can appear by the four-gluon self ...
Shaparau Valery, Kuvshinov V.I.
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Coordinate representation of squeezed states
Physical Review A, 1988 We obtain the wave function in the coordinate representation of the one-mode squeezed states || ζ, α>=exp(ζa ^2 -ζa 2 )exp(αa^-αa)||0>. The wave function is a displaced Gaussian with center and width depending upon the parameters α and ζ.
, Rai, , Mehta
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Squeezed states for general systems [PDF]
Physical Review Letters, 1993 We propose a ladder-operator method for obtaining the squeezed states of general symmetry systems. It is a generalization of the annihilation-operator technique for obtaining the coherent states of symmetry systems. We connect this method with the minimum-uncertainty method for obtaining the squeezed and coherent states of general potential systems ...
Nieto, Michael Martin, Truax, D. Rodney
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Inflation and squeezed quantum states [PDF]
Physical Review D, 1994 33 pages, one section added, significant revisions, 6 figures (in uuencoded file), Imperial/TP/92-93 ...
Albrecht, A +3 more
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Proceedings of the 2000 American Control Conference. ACC (IEEE Cat. No.00CH36334), 2000 In this paper we consider the classical and quantum control of squeezed states of harmonic oscillators. This provides a method for reducing noise below the quantum limit and provides an example of the control of under-actuated systems in the stochastic and quantum context.
Anthony M. Bloch, Alberto G. Rojo
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Squeezed vacuum interaction with an optomechanical cavity containing a quantum well
Scientific Reports, 2022 We investigate a hybrid system consisting of an optomechanical resonator and an optical cavity containing a quantum well. The system is coupled to a squeezed vacuum reservoir.
H. Jabri, H. Eleuch
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Quantum metrology of two-photon absorption
Physical Review Research, 2021 Two-photon absorption (TPA) is of fundamental importance in super-resolution imaging and spectroscopy. Its nonlinear character allows for the prospect of using quantum resources, such as entanglement, to improve measurement precision or to gain new ...
Carlos Sánchez Muñoz +2 more
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Optimal quantum noise cancellation with an entangled witness channel
Physical Review Research, 2021 We present the digital signal processing of a mutually entangled, two-mode squeezed state using Wiener filtering to maximize the reduction of quantum noise of a single mode. By conditioning this mode, the signal, with its directly detected entangled pair,
Daniel W. Gould +5 more
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Generation of Long-Term Stable Squeezed Vacuum States Using Dither-Locking Technique
Photonics, 2022 We report the generation of long-term stable squeezed vacuum states at 1064 nm using a degenerate optical parametric amplifier (DOPA) with a periodically poled KTiOPO4 crystal (PPKTP).
Daohua Wu +3 more
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