Comment on "An Arrow of Time Operator for Standard Quantum Mechanics" - a sign of the time!
| dc.creator | Hall, Michael J. W. | |
| dc.date | 2008-02-19 | |
| dc.date | 2008-02-20 | |
| dc.date.accessioned | 2026-07-07T09:21:45Z | |
| dc.date.available | 2026-07-07T09:21:45Z | |
| dc.description | It is shown that the `arrow of time' operator, M_F, recently suggested by Strauss et al., in arXiv:0802.2448v1 [quant-ph], is simply related to the sign of the canonical `time' observable, T (apparently first introduced by Holevo). In particular, the monotonic decrease of < M_F > corresponds to the fact that < sgn T > increases monotonically with time. This relationship also provides a physical interpretation of the property M_F < 1. Some further properties and possible generalisations are pointed out, including to almost-periodic systems. | |
| dc.description | Further propeties, generalisation to almost periodic systems, ref added, minor corrections, bad pun | |
| dc.identifier | https://arxiv.org/abs/0802.2682 | |
| dc.identifier | http://arxiv.org/abs/0802.2682 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/155138 | |
| dc.subject | Quantum Physics | |
| dc.title | Comment on "An Arrow of Time Operator for Standard Quantum Mechanics" - a sign of the time! | |
| dc.type | text |