A Unidirectional On-Chip Photonic Interface for Superconducting Circuits

We propose and analyze a passive architecture for realizing on-chip, scalable cascaded quantum devices. In contrast to standard approaches, our scheme does not rely on breaking Lorentz reciprocity. Rather, we engineer the interplay between pairs of superconducting transmon qubits and a microwave tra...

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Bibliographic Details
Published inarXiv.org
Main Authors Guimond, P O, Vermersch, B, Juan, M L, Sharafiev, A, Kirchmair, G, Zoller, P
Format Paper Journal Article
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 06.11.2019
Subjects
Error correction
Microwave transmission
Photonics
Physics - Quantum Physics
Qubits (quantum computing)
Reciprocity
Superconductivity
Transmission lines
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Summary:We propose and analyze a passive architecture for realizing on-chip, scalable cascaded quantum devices. In contrast to standard approaches, our scheme does not rely on breaking Lorentz reciprocity. Rather, we engineer the interplay between pairs of superconducting transmon qubits and a microwave transmission line, in such a way that two delocalized orthogonal excitations emit (and absorb) photons propagating in opposite directions. We show how such cascaded quantum devices can be exploited to passively probe and measure complex many-body operators on quantum registers of stationary qubits, thus enabling the heralded transfer of quantum states between distant qubits, as well as the generation and manipulation of stabilizer codes for quantum error correction.
ISSN:2331-8422
DOI:10.48550/arxiv.1911.02460