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quant-ph2021
Quantum circuits for exact unitary -designs and applications to higher-order randomized benchmarking
Yoshifumi Nakata, Da Zhao, Takayuki Okuda +9
A unitary -design is a powerful tool in quantum information science and fundamental physics. Despite its usefulness, only approximate implementations were known for general .…
quant-ph2020
Fast parametric two-qubit gates with suppressed residual interaction using a parity-violated superconducting qubit
Atsushi Noguchi, Alto Osada, Shumpei Masuda +7
We demonstrate fast two-qubit gates using a parity-violated superconducting qubit consisting of a capacitively-shunted asymmetric Josephson-junction loop under a finite magnetic fl…
quant-ph2018
Variational Quantum Gate Optimization
Kentaro Heya, Yasunari Suzuki, Yasunobu Nakamura +1
We propose a gate optimization method, which we call variational quantum gate optimization (VQGO). VQGO is a method to construct a target multi-qubit gate by optimizing a parametri…