190 citations · 935 across the 25 of their papers we have counts for
7 papers · 1 filter
Resource-efficient Generalized Quantum Subspace Expansion
Bo Yang, Nobuyuki Yoshioka, Hiroyuki Harada +5
Realizing practical quantum computing requires overcoming a number of computation errors and the limitation of device size, which have intensively been tackled by quantum error mit…
Work extractability from energy eigenstates under optimized local operations
Shotaro Z. Baba, Nobuyuki Yoshioka, Takahiro Sagawa
We examine the relationship between the second law of thermodynamics and the energy eigenstates of quantum many-body systems that undergo cyclic unitary evolution. Using a numerica…
Localized Virtual Purification
Hideaki Hakoshima, Suguru Endo, Kaoru Yamamoto +2
Analog and digital quantum simulators can efficiently simulate quantum many-body systems that appear in natural phenomena. However, experimental limitations of near-term devices st…
Nonlinearity-induced topological phase transition characterized by the nonlinear Chern number
Kazuki Sone, Motohiko Ezawa, Yuto Ashida +2
As first demonstrated by the characterization of the quantum Hall effect by the Chern number, topology provides a guiding principle to realize robust properties of condensed matter…
Clifford Group and Unitary Designs under Symmetry
Yosuke Mitsuhashi, Nobuyuki Yoshioka
We have generalized the well-known statement that the Clifford group is a unitary 3-design into symmetric cases by extending the notion of unitary design. Concretely, we have prove…
Leveraging hardware-control imperfections for error mitigation via generalized quantum subspace
Yasuhiro Ohkura, Suguru Endo, Takahiko Satoh +2
In the era of quantum computing without full fault-tolerance, it is essential to suppress noise effects via the quantum error mitigation techniques to enhance the computational pow…
Virtual quantum error detection
Kento Tsubouchi, Yasunari Suzuki, Yuuki Tokunaga +2
Quantum error correction and quantum error detection necessitate syndrome measurements to detect errors. Performing syndrome measurements for each stabilizer generator can be a sig…