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Transverse Mode Revival of a Light-Compensated Quantum Memory
Fan Yang, Torsten Mandel, Christian Lutz +2
A long-lived quantum memory was developed based on light-compensated cold Rb atoms in a dipole trap. The lifetime of the quantum memory was improved by 40 folds, from 0.67 m…
Verifying Genuine High-Order Entanglement
Che-Ming Li, Kai Chen, Andreas Reingruber +2
High-order entanglement embedded in multipartite multilevel quantum systems (qudits) with many degrees of freedom (DOFs) plays an important role in quantum foundation and quantum e…
Teleportation-based realization of an optical quantum two-qubit entangling gate
Wei-Bo Gao, Alexander M. Goebel, Chao-Yang Lu +8
In recent years, there has been heightened interest in quantum teleportation, which allows for the transfer of unknown quantum states over arbitrary distances. Quantum teleportatio…
Metropolitan all-pass and inter-city quantum communication network
Teng-Yun Chen, Jian Wang, Hao Liang +14
We have demonstrated a metropolitan all-pass quantum communication network in field fiber for four nodes. Any two nodes of them can be connected in the network to perform quantum k…
Experimental demonstration of a heralded entanglement source
Claudia Wagenknecht, Che-Ming Li, Andreas Reingruber +6
The heralded generation of entangled states is a long-standing goal in quantum information processing, because it is indispensable for a number of quantum protocols. Polarization e…
Quantum interface between frequency-uncorrelated down-converted entanglement and atomic-ensemble quantum memory
Xian-Min Jin, Jian Yang, Han Zhang +15
Photonic entanglement source and quantum memory are two basic building blocks of linear-optical quantum computation and long-distance quantum communication. In the past decades, in…
Experimental measurement-based quantum computing beyond the cluster-state model
Wei-Bo Gao, Xing-Can Yao, Jian-Ming Cai +7
The paradigm of measurement-based quantum computation opens new experimental avenues to realize a quantum computer and deepens our understanding of quantum physics. Measurement-bas…
Light pulse in -type cold atomic gases
Ran Wei, Bo Zhao, Youjin Deng +3
We investigate the behavior of the light pulse in -type cold atomic gases with two counterpropagating control lights with equal strength by directly simulating the dynamic…
Direct experimental verification of quantum commutation relations for Pauli operators
Xing-Can Yao, Jaromir Fiurasek, He Lu +4
We propose and demonstrate scheme for direct experimental testing of quantum commutation relations for Pauli operators. The implemented device is an advanced quantum processor that…