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qu an tph ] 3 0 M ay 2 01 9 Quantum dynamical speedup in correlated noisy channels
| Content Provider | Semantic Scholar |
|---|---|
| Author | Zhang, Guo-Feng |
| Copyright Year | 2019 |
| Abstract | The maximum evolution speed of a quantum system can be represented by quantum speed limit time (QSLT). We investigate QSLT of a two-qubit system passing through a correlated channel (amplitude damping, phase damping, and depolarizing). Our results show that, in amplitude damping channel and depolarizing channel, QSLT may be shortened in some cases by increasing channel correlation and initial entanglement, which are in sharp contrast to the phase damping channel. In particular, under the depolarizing channel, the transitions from no-speedup evolution to speedup evolution for the system can be occurred by changing the correlation strength of channel. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://export.arxiv.org/pdf/1905.12911 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
