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quant-ph2015★ 6 cited
Ising interaction between capacitively-coupled superconducting flux qubits
Takahiko Satoh, Yuichiro Matsuzaki, Kosuke Kakuyanagi +3
Here, we propose a scheme to generate a controllable Ising interaction between superconducting flux qubits. Existing schemes rely on inducting couplings to realize Ising interactio…
quant-ph2014★ 3 cited
Improving the coherence time of a quantum system via a coupling with an unstable system
Yuichiro Matsuzaki, Xiaobo Zhu, Kosuke Kakuyanagi +8
Here, we propose a counter-intuitive use of a hybrid system where the coherence time of a quantum system is actually improved via a coupling with an unstable system. If we couple a…