4 papers
Quantum secure blind decryption with two users
Masahito Hayashi, Yuki Ito
We propose two types of protocols for quantum secure blind decryption, involving two users and servers. User 1 holds the encrypted ciphertext. The servers store several indexed key…
Polynomial time constructive decision algorithm for multivariable quantum signal processing
Yuki Ito, Hitomi Mori, Kazuki Sakamoto +1
Quantum signal processing (QSP) and quantum singular value transformation (QSVT) have provided a unified framework for understanding many quantum algorithms, including factorizatio…
A Quantum Algorithm for Nonlinear Electromagnetic Fluid Dynamics via Koopman-von Neumann Linearization
Hayato Higuchi, Yuki Ito, Kazuki Sakamoto +2
To simulate plasma phenomena, large-scale computational resources have been employed in developing high-precision and high-resolution plasma simulations. One of the main obstacles…
Entanglement measures for detectability
Masahito Hayashi, Yuki Ito
We propose new entanglement measures as the detection performance based on the hypothesis testing setting. We clarify how our measures work for detecting an entangled state by exte…