176 citations · 572 across the 20 of their papers we have counts for
20 papers
Polarization Entanglement from Parametric Down-Conversion with a LED Pump
Wuhong Zhang, Diefei Xu, Lixiang Chen
Spontaneous parametric down-conversion (SPDC) is a reliable platform for entanglement generation. Routinely, a coherent laser beam is an essential prerequisite for pumping the nonl…
How gravitational fluctuations degrade the high-dimensional spatial entanglement
Haorong Wu, Xilong Fan, Lixiang Chen
Twisted photons carrying orbital angular momentum (OAM) are competent candidates for future interstellar communications. However, the gravitational fluctuations are ubiquitous in s…
Quantum Wiener-Khinchin theorem for spectral-domain optical coherence tomography
Yuanyuan Chen, Lixiang Chen
Wiener-Khinchin theorem, the fact that the autocorrelation function of a time process has a spectral decomposition given by its power spectrum intensity, can be used in many discip…
Imaging hyper-entanglement based on the Hardy-type nonlocality paradox
Wuhong Zhang, Xiaodong Qiu, Dongkai Zhang +1
The concept of quantum entanglement and hyper-entanglement, lying at the heart of quantum information science and technologies, is physically counter-intuitive and mathematically e…
Quantum teleportation of high-dimensional spatial modes: Towards an image teleporter
Xiaodong Qiu, Haoxu Guo, Lixiang Chen
Quantum teleportation, lying at the heart of a variety of quantum technologies, has inspired a widespread of research activities, most of which focused on 2-dimensional qubit state…
Quantum interferometric two-photon excitation spectroscopy
Yuanyuan Chen, Roberto de J. León-Montiel, Lixiang Chen
Two-photon excitation spectroscopy is a nonlinear technique that has gained rapidly in interest and significance for studying the complex energy-level structure and transition prob…
Temporal distinguishability in Hong-Ou-Mandel interference: Generation and characterization of high-dimensional frequency entanglement
Yuanyuan Chen, Sebastian Ecker, Lixiang Chen +3
High-dimensional quantum entanglement is currently one of the most prolific fields in quantum information processing due to its high information capacity and error resilience. A ve…
Coherent generation of the complete high-dimensional Bell basis by adaptive pump modulation
Yuanyuan Chen, Wuhong Zhang, Dongkai Zhang +2
The Bell basis, a set of maximally entangled biphoton state, is a critical prerequisite towards quantum information processing, and many quantum applications have highlighted the r…
Orbital-angular-momentum-based experimental test of Hardy's paradox for multisetting and multidimensional systems
Dongkai Zhang, Xiaodong Qiu, Tianlong Ma +2
Characterizing high-dimensional entangled states is of crucial importance in quantum information science and technology. Recent theoretical progress has been made to extend the Har…
Quantum remote sensing of angular rotation of structured objects
Wuhong Zhang, Dongkai Zhang, Xiaodong Qiu +1
Based on two-photon entanglement, quantum remote sensing enables the measurement and detection to be done non-locally and remotely. However, little attention has been paid to imple…
The influence of pump coherence on the generation of position-momentum entanglement in down-conversion
Wuhong Zhang, Robert Fickler, Enno Giese +2
Strong correlations in two conjugate variables are the signature of quantum entanglement and have played a key role in the development of modern physics. Entangled photons have bec…
Vectorial nonlinear optical generation
Li Zhang, Fei Lin, Xiaodong Qiu +1
Nonlinear optical generation has been a well-established way to realize frequency conversion in nonlinear optics, whereas previous studies were just focusing on the scalar light fi…
Influence of pump coherence on the quantum properties of spontaneous parametric down-conversion
Enno Giese, Robert Fickler, Wuhong Zhang +2
The correlation properties of the pump field in spontaneous parametric down-conversion are crucial in determining the degree of entanglement of generated signal and idler photons.…
Free-space remote sensing of rotation at photon-counting level
Wuhong Zhang, Jingsong Gao, Dongkai Zhang +4
The rotational Doppler effect associated with light's orbital angular momentum (OAM) has been found as a powerful tool to detect rotating bodies. However, this method was only demo…
A model of orbital angular momentum Li-Fi
Yuanying Zhang, Jikang Wang, Wuhong Zhang +2
Twisted light has recently gained enormous interest in communication systems. Thus far, twisted light has not yet been utilized for visible light communication to transmit data. He…
Resolution to the quantum-classical dilemma in thermal ghost imaging
Lixiang Chen
There has been an intense debate on the quantum versus classical origin of ghost imaging with a thermal light source over the last two decades. A lot of distinguished work has cont…
Making and identifying optical superposition of very high orbital angular momenta
Lixiang Chen, Wuhong Zhang, Qinghong Lu +1
We report the experimental preparation of optical superpositions of high orbital angular momenta(OAM). Our method is based on the use of spatial light modulator to modify the stand…
Violation of a Bell inequality in two-dimensional spin-orbit hypoentangled subspaces
Lixiang Chen, Xiancong Lu, Zhongqun Cheng
Based on spin-orbit coupling induced by q-plates, we present a feasible experimental proposal for preparing two-dimensional spatially inhomogeneous polarizations of light. We furth…
Spin-orbit hybrid entanglement of photons and quantum contextuality
Ebrahim Karimi, Jonathan Leach, Sergei Slussarenko +7
We demonstrate electromagnetic quantum states of single photons and of correlated photon pairs exhibiting "hybrid" entanglement between spin and orbital angular momentum. These sta…
Single-photon spin-orbit entanglement violating a Bell-like inequality
Lixiang Chen, Weilong She
Single photons emerging from q-plates (or Pancharatnam-Berry phase optical element) exhibit entanglement in the degrees of freedom of spin and orbital angular momentum. We put forw…