Charge-Noise Insensitive Chiral Photonic Interface for Waveguide Circuit QED
Publikation: Bidrag til tidsskrift › Letter › Forskning › fagfællebedømt
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Charge-Noise Insensitive Chiral Photonic Interface for Waveguide Circuit QED. / Zhang, Yu-Xiang; Carceller, Carles R.; Kjaergaard, Morten; Sorensen, Anders S.
I: Physical Review Letters, Bind 127, Nr. 23, 233601, 29.11.2021.Publikation: Bidrag til tidsskrift › Letter › Forskning › fagfællebedømt
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TY - JOUR
T1 - Charge-Noise Insensitive Chiral Photonic Interface for Waveguide Circuit QED
AU - Zhang, Yu-Xiang
AU - Carceller, Carles R.
AU - Kjaergaard, Morten
AU - Sorensen, Anders S.
PY - 2021/11/29
Y1 - 2021/11/29
N2 - A chiral photonic interface is a quantum system that has different probabilities for emitting photons to the left and right. An on-chip compatible chiral interface is attractive for both fundamental studies of lightmatter interactions and applications to quantum information processing. We propose such a chiral interface based on superconducting circuits, which has wide bandwidth, rich tunability, and high tolerance to fabrication variations. The proposed interface consists of a core that uses Cooper-pair boxes (CPBs) to break time-reversal symmetry, and two superconducting transmons that connect the core to a waveguide in the manner reminiscent of a "giant atom." The transmons form a state decoupled from the core, akin to dark states of atomic physics, rendering the whole interface insensitive to the CPB charge noise. The proposed interface can be extended to realize a broadband fully passive on-chip circulator for microwave photons.
AB - A chiral photonic interface is a quantum system that has different probabilities for emitting photons to the left and right. An on-chip compatible chiral interface is attractive for both fundamental studies of lightmatter interactions and applications to quantum information processing. We propose such a chiral interface based on superconducting circuits, which has wide bandwidth, rich tunability, and high tolerance to fabrication variations. The proposed interface consists of a core that uses Cooper-pair boxes (CPBs) to break time-reversal symmetry, and two superconducting transmons that connect the core to a waveguide in the manner reminiscent of a "giant atom." The transmons form a state decoupled from the core, akin to dark states of atomic physics, rendering the whole interface insensitive to the CPB charge noise. The proposed interface can be extended to realize a broadband fully passive on-chip circulator for microwave photons.
KW - NON-RECIPROCITY
KW - QUANTUM
KW - STATE
KW - QUBITS
U2 - 10.1103/PhysRevLett.127.233601
DO - 10.1103/PhysRevLett.127.233601
M3 - Letter
C2 - 34936790
VL - 127
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 23
M1 - 233601
ER -
ID: 286626762