scholarly journals Control of the transition frequency of a superconducting flux qubit by longitudinal coupling to the photon number degree of freedom in a resonator

2020 ◽  
Vol 102 (9) ◽  
Author(s):  
Hiraku Toida ◽  
Takuya Ohrai ◽  
Yuichiro Matsuzaki ◽  
Kosuke Kakuyanagi ◽  
Shiro Saito
Keyword(s):  
Photon Number ◽  
Degree Of Freedom ◽  
Transition Frequency ◽  
Flux Qubit ◽  
Superconducting Flux Qubit

Single-shot readout of a superconducting flux qubit with a flux-driven Josephson parametric amplifier

2013 ◽  
Vol 103 (13) ◽  
pp. 132602 ◽  
Author(s):  
Z. R. Lin ◽  
K. Inomata ◽  
W. D. Oliver ◽  
K. Koshino ◽  
Y. Nakamura ◽  
...  
Keyword(s):  
Parametric Amplifier ◽  
Single Shot ◽  
Flux Qubit ◽  
Superconducting Flux Qubit

scholarly journals Realizable spin models and entanglement dynamics in superconducting flux qubit systems

2008 ◽  
Vol 77 (10) ◽  
Author(s):  
Qian Qian Shi ◽  
Sam Young Cho ◽  
Bo Li ◽  
Mun Dae Kim
Keyword(s):  
Entanglement Dynamics ◽  
Spin Models ◽  
Flux Qubit ◽  
Superconducting Flux Qubit

scholarly journals Continuous Variable Entanglement in Non-Zero Orbital Angular Momentum States

Proceedings ◽  
2019 ◽  
Vol 12 (1) ◽  
pp. 7
Author(s):  
Adriana Pecoraro ◽  
Filippo Cardano ◽  
Lorenzo Marrucci ◽  
Alberto Porzio
Keyword(s):  
Angular Momentum ◽  
Orbital Angular Momentum ◽  
Direct Detection ◽  
Hybrid Approach ◽  
Photon Number ◽  
Local Oscillator ◽  
Continuous Variable ◽  
Degree Of Freedom ◽  
Entangled State ◽  
Continuous Variables

Orbital angular momentum is a discrete degree of freedom that can access an infinite dimensional Hilbert space, thus enhancing the information capacity of a single optical beam. Continuous variables field quadratures allow achieving some quantum tasks in a more advantageous way with respect to the use of photon-number states. Here, we use a hybrid approach realizing bipartite continuous-variable Gaussian entangled state made up of two electromagnetic modes carrying orbital angular momentum. A q-plate is used for endowing a pair of entangled beams with such a degree of freedom. This quantum state is then completely characterized thanks to a novel design of a homodyne detector in which also the local oscillator is an orbital angular momentum-carrying beams so allowing the direct detection of vortex modes quadratures.

scholarly journals Noise spectroscopy through dynamical decoupling with a superconducting flux qubit

2011 ◽  
Vol 7 (7) ◽  
pp. 565-570 ◽  
Author(s):  
Jonas Bylander ◽  
Simon Gustavsson ◽  
Fei Yan ◽  
Fumiki Yoshihara ◽  
Khalil Harrabi ◽  
...  
Keyword(s):  
Dynamical Decoupling ◽  
Noise Spectroscopy ◽  
Flux Qubit ◽  
Superconducting Flux Qubit

scholarly journals Electromagnetically induced interference in a superconducting flux qubit

2013 ◽  
Vol 39 (6) ◽  
pp. 503-514 ◽  
Author(s):  
Lingjie Du ◽  
Yang Yu ◽  
Dong Lan
Keyword(s):  
Flux Qubit ◽  
Superconducting Flux Qubit

MULTIPHOTON ABSORPTION AND SQUID SWITCHING CURRENT BEHAVIORS IN SUPERCONDUCTING FLUX-QUBIT EXPERIMENTS

2005 ◽  
Author(s):  
HIDEAKI TAKAYANAGI ◽  
HAYATO NAKANO ◽  
HIROTAKA TANAKA ◽  
SHIRO SAITO ◽  
KOUICHI SEMBA ◽  
...  
Keyword(s):  
Multiphoton Absorption ◽  
Switching Current ◽  
Flux Qubit ◽  
Superconducting Flux Qubit

Dynamics in the Read-Out Process of the Superconducting Flux-Qubit

2003 ◽  
Vol 72 (Suppl.A) ◽  
pp. 1-2 ◽  
Author(s):  
Hayato Nakano ◽  
Hideaki Takayanagi
Keyword(s):  
Flux Qubit ◽  
Superconducting Flux Qubit
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