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Abstract
We present a way of directly manipulating an arbitrary qubit, without the exchange of any particles. This includes as an application the exchange-free preparation of an arbitrary quantum state at Alice by a remote classical Bob. As a result, we are able to propose a protocol that allows one party to directly enact, by means of a suitable program, any computation exchange-free on a remote second party's unknown qubit. Further, we show how to use this for the exchange-free control of a universal two-qubit gate, thus opening the possibility of directly enacting any desired algorithm remotely on a programmable quantum circuit.
| Original language | English |
|---|---|
| Article number | 013004 |
| Number of pages | 10 |
| Journal | New Journal of Physics |
| Volume | 23 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 19 Jan 2021 |
Bibliographical note
Funding Information:We thank Claudio Marinelli for helping to bring this collaboration together. This work was supported by the Engineering and Physical Sciences Research Council (Grants EP/P510269/1, EP/T001011/1, EP/R513386/1, EP/M013472/1 and EP/L024020/1).
Publisher Copyright:
© 2021 The Author(s). Published by IOP Publishing Ltd on behalf of the Institute of Physics and Deutsche Physikalische Gesellschaft
Structured keywords
- QETLabs
- Bristol Quantum Information Institute
Keywords
- quant-ph
Fingerprint
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QComms2: 8031 EP/T001011/1 Quantum Communication Hub via York
Rarity, J. G., Nejabati, R., Simeonidou, D., Sahin, D., Kanellos, G., Aktas, D. V. C., Joshi, S. K., Lowndes, D. L. D., Venkatachalam, N., Hugues Salas, E., Woodland, E. M., Erven, C., Zhang, P., Hance, J. R., Clark, M., Rosenfeld, L. M., Hastings, E. M. J., Johlinger, F. B., Wang, R., Stange Tessinari, R., Solomons, N. R., Fasoulakis, T. & Alia, O.
1/12/19 → 30/11/24
Project: Research
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