Pati, Arun K. ; Braunstein, Samuel L. (2003) Quantum deleting and signalling Physics Letters A, 315 (3-4). pp. 208-212. ISSN 0375-9601
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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1016/S0375-9601(03)01047-8
Abstract
It is known that if one could clone an arbitrary quantum state then one could send signals faster than the speed of light. Here, we show that deletion of an unknown quantum state for which two copies are available would also lead to superluminal signalling. However, the (Landauer) erasure of an unknown quantum state does not allow faster-than-light communication.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | Linearity; Cloning; Deleting; Signalling |
| ID Code: | 105103 |
| Deposited On: | 09 Mar 2018 11:39 |
| Last Modified: | 09 Mar 2018 11:39 |
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