6 papers · 1 filter
Experimental zero-added-loss multiplexing Bell-pair source for long-haul quantum networks
Yoshiaki Tsujimoto, Daiki Ichii, Rikizo Ikuta +4
Boosting the communication rate of quantum networks is a central challenge in quantum information science. Recently, an efficient entanglement distribution scheme employing quasi-d…
Geometric measures of quantum nonlocality: characterization, quantification, and comparison by distances and operations
Gennaro Zanfardino, Wojciech Roga, Gianluigi Tartaglione +2
We introduce a geometric framework for studying Bell nonlocality in Hilbert space, where, for a given quantum state, nonlocality is quantified by the distance between the state and…
Quantum state estimation of multi-partite single photon path entanglement via local measurements
Hikaru Shimizu, Joe Yoshimoto, Kazufumi Tanji +5
Multipartite entanglement plays a critical role in various applications of quantum internet. In these applications, the entanglement is usually shared by the distant parties. Exper…
Programmable Quantum Linear Interference with Pulse Shaping of Quantum Light
Aruto Hosaka, Masaya Tomita, Yoshiaki Tsujimoto +6
In this paper, we propose a novel method for interfering frequency-multiplexed photonic quantum states without the use of optical nonlinear effects, and experimentally demonstrate…
Rate-fidelity trade-off in cavity-based remote entanglement generation
Kazufumi Tanji, Hiroki Takahashi, Wojciech Roga +1
The qubit scalability imposes a paramount challenge in the field of quantum computing. Photonic interconnects between distinct quantum computing modules provide a solution to deal…
Simple loss-tolerant protocol for GHZ-state distribution in a quantum network
Hikaru Shimizu, Wojciech Roga, David Elkouss +1
Distributed quantum entanglement plays a crucial role in realizing networks that connect quantum devices. However, sharing entanglement between distant nodes by means of photons is…