Destructive Controlled-Phase Gate Using Linear Optics
| dc.contributor.author | Shringarpure, S.U. | |
| dc.contributor.author | Franson, J.D. | |
| dc.date.accessioned | 2021-03-30T18:34:29Z | |
| dc.date.available | 2021-03-30T18:34:29Z | |
| dc.date.issued | 2021-03-05 | |
| dc.description.abstract | Knill, Laflamme, and Milburn [Nature 409, 46 (2001)] showed that linear optics techniques could be used to implement a nonlinear sign gate. They also showed that two of their nonlinear sign gates could be combined to implement a controlled-phase gate, which has a number of practical applications. Here we describe an alternative implementation of a controlled-phase gate that only requires the use of a single nonlinear sign gate. This gives a much higher average probability of success when the required ancilla photons are generated using heralding techniques. This implementation of a controlled-phase gate destroys the control qubit, which is acceptable in a number of applications where the control qubit would have been destroyed in any event, such as in a postselection process. | en_US |
| dc.description.sponsorship | We would like to acknowledge valuable discussions with Cory Nunn and Todd Pittman. This work was supported in part by the National Science Foundation under grant number PHY-1802472. | en_US |
| dc.description.uri | https://arxiv.org/abs/2103.03711 | en_US |
| dc.format.extent | 8 pages | en_US |
| dc.genre | journal articles preprints | en_US |
| dc.identifier | doi:10.13016/m2q8nr-h2te | |
| dc.identifier.citation | Shringarpure, S.U.; Franson, J.D.; Destructive Controlled-Phase Gate Using Linear Optics; Quantum Physics (2021); https://arxiv.org/abs/2103.03711 | en_US |
| dc.identifier.uri | http://hdl.handle.net/11603/21261 | |
| dc.language.iso | en_US | en_US |
| dc.relation.isAvailableAt | The University of Maryland, Baltimore County (UMBC) | |
| dc.relation.ispartof | UMBC Physics Department Collection | |
| dc.relation.ispartof | UMBC Faculty Collection | |
| dc.relation.ispartof | UMBC Student Collection | |
| dc.rights | This item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author. | |
| dc.title | Destructive Controlled-Phase Gate Using Linear Optics | en_US |
| dc.type | Text | en_US |
| dcterms.creator | https://orcid.org/0000-0003-0576-9145 |