Details
| Original language | English |
|---|---|
| Title of host publication | Quantum probability and related topics, vol. IX |
| Editors | L. Accardi |
| Place of Publication | Singapore |
| Publisher | World Scientific Publishing Co. Pte Ltd |
| Pages | 389-399 |
| Number of pages | 11 |
| Publication status | Published - 1994 |
Abstract
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Quantum probability and related topics, vol. IX. ed. / L. Accardi. Singapore: World Scientific Publishing Co. Pte Ltd, 1994. p. 389-399.
Research output: Chapter in book/report/conference proceeding › Contribution to book/anthology › Research › peer review
}
TY - CHAP
T1 - On the concentration of quantum states in phase space
AU - Werner, R. F.
PY - 1994
Y1 - 1994
N2 - Let E(x), for x in a 2d-dimensional phase space, be an irreducible Weyl system, and Rto R a convex function with 0)=0. We discuss the maximum of int dx|ltE(x)psi) with respect to unit vectors psi. When t)=tlt pltinfty the maximum is attained if and only if phi and psi are coherent states with respect to the same quadratic form. We show that this statement is not correct for more general convex functions Phi.
AB - Let E(x), for x in a 2d-dimensional phase space, be an irreducible Weyl system, and Rto R a convex function with 0)=0. We discuss the maximum of int dx|ltE(x)psi) with respect to unit vectors psi. When t)=tlt pltinfty the maximum is attained if and only if phi and psi are coherent states with respect to the same quadratic form. We show that this statement is not correct for more general convex functions Phi.
M3 - Contribution to book/anthology
SP - 389
EP - 399
BT - Quantum probability and related topics, vol. IX
A2 - Accardi, L.
PB - World Scientific Publishing Co. Pte Ltd
CY - Singapore
ER -