Quantum correlation is a fundamental resource for various quantum information tasks. It is
thus of importance to share the correlation to utilize it for many parties, but sharing quantum …

Variational quantum algorithms, a representative class of modern quantum algorithms,
provide practical uses of near-term quantum processors. The size of the problem that can be …

Particle identity and entanglement are two fundamental quantum properties that work as
major resources for various quantum information tasks. However, it is still a challenging …

Nonlocal quantum correlation is at the heart of the bizarre nature of quantum physics. While
there are various classes of nonlocal quantum correlation, steerability of a quantum state by …

Quantum key distribution (QKD) guarantees unconditional communication security based on
the laws of quantum physics. However, practical QKD suffers from a number of quantum …

Reference-frame-independent quantum key distribution (RFI-QKD) provides a practical way
to generate secret keys between two remote parties without sharing common reference …

Entanglement between distant parties is a key resource in quantum networks. However,
photon losses in quantum channels significantly reduce the success probability of …

Quantum correlations between identical particles are at the heart of quantum technologies.
Several studies with two identical particles have shown that the spatial overlap and …

Quantum enhanced multiple phase estimation is essential for various applications in
quantum sensors and imaging. For multiple phase estimation, the sensitivity enhancement is …

Linear optical multiports are widely used in photonic quantum information processing.
Naturally, these devices are directionally-biased since photons always propagate from the …