Robust implementation of quantum gates despite always-on exchange coupling in silicon double quantum dots
| dc.contributor.author | Güngördü, Utkan | |
| dc.contributor.author | Kestner, J. P. | |
| dc.date.accessioned | 2020-02-07T15:52:31Z | |
| dc.date.available | 2020-02-07T15:52:31Z | |
| dc.date.issued | 2019-11-27 | |
| dc.description.abstract | Addressibility of spin qubits in a silicon double quantum dot setup in the (1,1) charge configuration relies on having a large difference between the Zeeman splittings of the electrons. When the difference is not sufficiently large, the rotating wave approximation becomes inaccurate. We consider a device working in this regime, with always-on exchange coupling, and describe how a CZ gate and arbitrary one-qubit gates which are robust against charge noise can be implemented by smoothly pulsing the microwave source, while eliminating the crosstalk stroboscopically. We find that the most significant deviations from the rotating wave approximation, which are analogous to the Bloch-Siegert shift in a two-level system, can be compensated using local virtual gates. | en_US |
| dc.description.sponsorship | This research was sponsored by the Army Research Office (ARO), and was accomplished under Grant Number W911NF-17-1-0287. | en_US |
| dc.description.uri | https://arxiv.org/abs/1911.12351 | en_US |
| dc.format.extent | 9 pages | en_US |
| dc.genre | journal articles preprints | en_US |
| dc.identifier | doi:10.13016/m21aif-qv0t | |
| dc.identifier.citation | Güngördü, Utkan; Kestner, J. P.; Robust implementation of quantum gates despite always-on exchange coupling in silicon double quantum dots; Mesoscale and Nanoscale Physics (2019); https://arxiv.org/abs/1911.12351 | en_US |
| dc.identifier.uri | http://hdl.handle.net/11603/17236 | |
| 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.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 | Robust implementation of quantum gates despite always-on exchange coupling in silicon double quantum dots | en_US |
| dc.type | Text | en_US |