Non-equilibrium correlations and entanglement in a semiconductor hybrid circuit-QED system
| dc.contributor.author | Contreras-Pulido, L. D. | |
| dc.contributor.author | Emary, Clive | |
| dc.contributor.author | Brandes, Tobias | |
| dc.contributor.author | Aguado, Ramón | |
| dc.date.accessioned | 2022-02-15T16:57:53Z | |
| dc.date.available | 2022-02-15T16:57:53Z | |
| dc.date.issued | 2013-09-16 | |
| dc.date.updated | 2022-02-10T12:11:33Z | |
| dc.description.abstract | We present a theoretical study of a hybrid circuit-quantum electrodynamics system composed of two semiconducting charge-qubits confined in a microwave resonator. The qubits are defined in terms of the charge states of two spatially separated double quantum dots (DQDs) which are coupled to the same photon mode in the microwave resonator. We analyse a transport setup where each DQD is attached to electronic reservoirs and biased out-of-equilibrium by a large voltage, and study how electron transport across each DQD is modified by the coupling to the common resonator. In particular, we show that the inelastic current through each DQD reflects an indirect qubit–qubit interaction mediated by off-resonant photons in the microwave resonator. As a result of this interaction, both charge qubits stay entangled in the steady (dissipative) state. Finite shot noise cross-correlations between currents across distant DQDs are another manifestation of this nontrivial steady-state entanglement. | en |
| dc.description.sponsorship | DFG, 163436311, SFB 910: Kontrolle selbstorganisierender nichtlinearer Systeme: Theoretische Methoden und Anwendungskonzepte | en |
| dc.description.sponsorship | DFG, 87159868, GRK 1558: Kollektive Dynamik im Nichtgleichgewicht: in kondensierter Materie und biologischen Systemen | en |
| dc.identifier.eissn | 1367-2630 | |
| dc.identifier.uri | https://depositonce.tu-berlin.de/handle/11303/16398 | |
| dc.identifier.uri | http://dx.doi.org/10.14279/depositonce-15174 | |
| dc.language.iso | en | en |
| dc.rights.uri | https://creativecommons.org/licenses/by/3.0/ | en |
| dc.subject.ddc | 530 Physik | de |
| dc.subject.other | semiconductors | en |
| dc.subject.other | non-equilibrium correlations | en |
| dc.subject.other | hybrid circuit-quantum electrodynamics system | en |
| dc.subject.other | microwave resonator | en |
| dc.subject.other | DQDs | en |
| dc.title | Non-equilibrium correlations and entanglement in a semiconductor hybrid circuit-QED system | en |
| dc.type | Article | en |
| dc.type.version | publishedVersion | en |
| dcterms.bibliographicCitation.articlenumber | 095008 | en |
| dcterms.bibliographicCitation.doi | 10.1088/1367-2630/15/9/095008 | en |
| dcterms.bibliographicCitation.issue | 9 | en |
| dcterms.bibliographicCitation.journaltitle | New Journal of Physics | en |
| dcterms.bibliographicCitation.originalpublishername | IOP | en |
| dcterms.bibliographicCitation.originalpublisherplace | Bristol | en |
| dcterms.bibliographicCitation.volume | 15 | en |
| tub.accessrights.dnb | free | en |
| tub.affiliation | Fak. 2 Mathematik und Naturwissenschaften::Inst. Theoretische Physik::FG Computergestützte Materialphysik | de |
| tub.affiliation.faculty | Fak. 2 Mathematik und Naturwissenschaften | de |
| tub.affiliation.group | FG Computergestützte Materialphysik | de |
| tub.affiliation.institute | Inst. Theoretische Physik | de |
| tub.publisher.universityorinstitution | Technische Universität Berlin | en |