5 papers
Critical Topological Photonics in Synthetic Dimensions
Mingyuan Chen, Yuwei Jing, Franco Nori +1
Topological states and criticality have long been regarded as incompatible ingredients: the former requires a finite spectral gap, whereas the latter demands its closure. Guided by…
Spin chirality across quantum state copies detects hidden entanglement
Patrycja Tulewicz, Karol Bartkiewicz, Franco Nori
Entanglement can hide in two fundamentally different ways. First, multi-copy correlations can carry information that no single-copy measurement on an unknown state is able to acces…
Non-Hermitian sensing from the perspective of post-selected measurements
Neng Zeng, Tao Liu, Keyu Xia +2
By employing the Naimark dilation, we establish a fundamental connection between non-Hermitian quantum sensing and post-selected measurements. The sensitivity of non-Hermitian quan…
Quantum Cross Nonlinearity for Photon-Number-Resolving Nondestructive Detection
Jiang-Shan Tang, Mingyuan Chen, Miao Cai +4
We present an unconventional mechanism for quantum nonlinearity in a system comprising of a V-type quantum emitter (QE) and two Fabry-Perot cavities. The two transitions of the V-t…
High-Dimensional Two-Photon Quantum Controlled Phase-Flip Gate
Mingyuan Chen, Jiangshan Tang, Miao Cai +2
High-dimensional quantum systems have been used to reveal interesting fundamental physics and to improve information capacity and noise resilience in quantum information processing…