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4 papers · 2 filters
Nonclassicality in phase space and nonclassical correlation
Petr Marek, M. S. Kim, Jinhyoung Lee
Continuous variable entanglement is a manifestation of nonclassicality of quantum states. In this paper we attempt to analyze whether and under which conditions nonclassicality can…
Decoherence of Highly Mixed Macroscopic Quantum Superpositions
Hyunseok Jeong, Jinhyoung Lee, Hyunchul Nha
It is known that a macroscopic quantum superposition (MQS), when it is exposed to environment, decoheres at a rate scaling with the separation of its component states in phase spac…
Vacuum as a less hostile environment to entanglement
Petr Marek, Jinhyoung Lee, M. S. Kim
We derive sufficient conditions for infinite-dimensional systems whose entanglement is not completely lost in a finite time during its decoherence by a passive interaction with loc…
Measurement of EPR-type flavour entanglement in Upsilon(4S)->B0 B0bar decays
A. Go, A. Bay
The neutral B-meson pair produced at the Upsilon(4S) should exhibit a non-local correlation of the type discussed by Einstein, Podolski, and Rosen (EPR). We measure this correlatio…