Squeezing enhancement by competing nonlinearities: Almost perfect squeezing without instabilities
نویسندگان
چکیده
منابع مشابه
Squeezing arguments
Many of our concepts are introduced to us via, and seem only to be constrained by, roughand-ready explanations and some sample paradigm positive and negative applications. This happens even in informal logic and mathematics. Yet in some cases, the concepts in question – although only informally and vaguely characterized – in fact have, or appear to have, entirely determinate extensions. Here’s ...
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Xiaoguang Wang and Barry C. Sanders Department of Physics and Australian Centre of Excellence for Quantum Computer Technology, Macquarie University, Sydney, New South Wales 2109, Australia Department of Physics and Center for Nonlinear Studies, Hong Kong Baptist University, Hong Kong, China Quantum Information Science Group, Department of Physics and Astronomy, University of Calgary, Alberta, C...
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We study entanglement and squeezing of a cluster of spin systems under the influence of the two-axis countertwisting Hamiltonian. The squeezing parameters given by Wineland et al and also by Kitagawa et al. are chosen as the criteria of spin squeezing. The criterion of pairwise entanglement is chosen to be the concurrence and that of the bipartite entanglement the linear entropy. We also define...
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Squeezed states are characterized by a phasedependent redistribution of quantum fluctuations such that the dispersion in one of the two quadrature components of the field is reduced below the level set by the symmetric distribution of the vacuum state or a coherent state [1]. Such a property has been used to raise the sensitivity beyond the standard quantum limit [2, 3] and to enhance interfero...
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Feature Squeezing is a recently proposed defense method which reduces the search space available to an adversary by coalescing samples that correspond to many different feature vectors in the original space into a single sample. It has been shown that feature squeezing defenses can be combined in a joint detection framework to achieve high detection rates against state-of-the-art attacks. Howev...
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ژورنال
عنوان ژورنال: Physical Review A
سال: 1997
ISSN: 1050-2947,1094-1622
DOI: 10.1103/physreva.56.5131