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7 papers · 2 filters
Composite device for interfacing an array of atoms with a single nanophotonic cavity mode
Mark Sadgrove, Kali P. Nayak
We propose a method of trapping atoms in arrays near to the surface of a composite nanophotonic device with optimal coupling to a single cavity mode. The device, comprised of a nan…
Symmetrizing Cost of Quantum States
Eyuri Wakakuwa
We introduce and analyze a task that we call symmetrization, in which a state of a quantum system, associated with a symmetry group, is transformed by a random unitary operation to…
A Four-Round LOCC Protocol Outperforms All Two-Round Protocols in Reducing the Entanglement Cost for A Distributed Quantum Information Processing
Eyuri Wakakuwa, Akihito Soeda, Mio Murao
We prove that there is a trade-off relation between the entanglement cost and the number of rounds of communication, for two distant parties to accomplish a bidirectional quantum i…
Quantum Information with Even/Odd States of Orbital Angular Momentum of Light
Chithrabhanu Perumangatt, Nijil Lal, Ali Anwar +2
We address the possibility of using even/odd states of orbital angular momentum (OAM) of photons for the quantum information tasks. Single photon qubit states and two photon entang…
Detection-dependent six-photon NOON state interference
Rui-Bo Jin, Mikio Fujiwara, Ryosuke Shimizu +7
NOON state interference (NOON-SI) is a powerful tool to improve the phase sensing precision, and can play an important role in quantum sensing and quantum imaging. However, most of…
Generation and distribution of high-dimensional frequency-entangled qudits
Rui-Bo Jin, Ryosuke Shimizu, Mikio Fujiwara +7
We demonstrate a novel scheme to generate frequency-entangled qudits with dimension number higher than 10 and to distribute them over optical fibers of 15 km in total length. This…