3 papers
quant-ph2025
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…
quant-ph2024
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…
quant-ph2024
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…