Measurement, Trace, Information Erasure and Entropy
| dc.creator | Cai, Qing-Yu | |
| dc.date | 2003-07-04 | |
| dc.date.accessioned | 2026-07-07T06:07:14Z | |
| dc.date.available | 2026-07-07T06:07:14Z | |
| dc.description | We show that both information erasure process and trace process can be realized by projective measurement. And a partial trace operation consists to a projective measurement on a subsystem. We show that a nonunitary operation will destroy the wave-behavior of a particle. We give a quantum manifestation of Maxwell's demon and give a quantum manifestation of the second law of therodynamics. We show that, considering the law of memontum-energy conversation, the evolution of a closed system should be unitary and the von Neumann entropy of the closed quantum system should be least. | |
| dc.description | 8pages. Reported on the Conference of Chinese Physics Society (2003 autumn):Quantum information conncil house | |
| dc.identifier | https://arxiv.org/abs/quant-ph/0307026 | |
| dc.identifier | http://arxiv.org/abs/quant-ph/0307026 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/91221 | |
| dc.subject | Quantum Physics | |
| dc.title | Measurement, Trace, Information Erasure and Entropy | |
| dc.type | text |