Speaker
Astghik Torosyan
(LIT)
Description
Unlike the standard statistical distribution, for some states the Wigner function takes negative values, and this property is generally considered to be an indicator of quantumness of a system. We analyze the global indicator of classicality for N-level quantum systems, which is based on the negative part of the Wigner function and defined on the orbit space of a quantum system endowed with a certain Riemannian metric. Meaning to find connections between the informational contents and geometrical characteristics of quantum states, we evaluate the global indicator of classicality of a qutrit for various metrics.
Primary authors
Vahagn Abgaryan
(JINR LTP)
Arsen Khvedelidze
(Joint Institute for Nuclear Research)
Astghik Torosyan
(LIT)
