4 papers
Superfluidity or supersolidity as a Consequence of Off-diagonal Long-range Order
Yu Shi
We present a general derivation of Hess-Fairbank effect or non-classical rotational inertial (NCRI), i.e. the refusal to rotate with its container, as well as the quantization of a…
Comment on "Entanglement Measure for Composite Systems"
Yu Shi
A recent paper claimed to give an entanglement measure for composite systems, including Bose condensation and superconductivity. It is not an entanglement measure. It does not dist…
All Entanglements in a Multipartite System
Yu Shi
For a multipartite system, we sort out all possible entanglements, each of which is among a set of subsystems. Each entanglement can be measured by a generalized relative entropy o…
Non-partial Reality
Yu Shi
Study on pre- and postselected quantum system indicates that ``product rule'' and ``sum rule'' for elements of reality should be abandoned. We show that this so-called non-partial…