A5008793346- Quantum Information and Cryptography
- Quantum optics and atomic interactions
- Quantum Mechanics and Applications
- Cold Atom Physics and Bose-Einstein Condensates
- Quantum Computing Algorithms and Architecture
- Atomic and Subatomic Physics Research
- Orbital Angular Momentum in Optics
- Photonic and Optical Devices
- Laser-Matter Interactions and Applications
- Advanced Fiber Laser Technologies
- Mechanical and Optical Resonators
- Spectroscopy and Quantum Chemical Studies
- Neural Networks and Reservoir Computing
- Strong Light-Matter Interactions
- Photonic Crystals and Applications
- Solid State Laser Technologies
- Advanced Frequency and Time Standards
- Memory and Neural Mechanisms
- Microfluidic and Bio-sensing Technologies
- Advanced Sensor and Energy Harvesting Materials
- Quantum and electron transport phenomena
- Neuroscience and Neural Engineering
- Advanced Optical Sensing Technologies
- Molecular spectroscopy and chirality
- Neuroscience and Neuropharmacology Research
University of Chinese Academy of Sciences
2025
Technical Institute of Physics and Chemistry
2025
Chinese Academy of Sciences
2025
State Key Laboratory of Quantum Optics and Quantum Optics Devices
2017-2022
Shanxi University
2017-2022
Shanxi University of Traditional Chinese Medicine
2022
California Institute of Technology
2019-2020
East China Normal University
2012-2017
University of Calgary
2014-2015
Quantum correlations and entanglement shared among multiple quantum modes are important for both fundamental science the future development of technologies. This will also require an efficient interface between multimode light sources atomic ensembles, which makes it necessary to implement that match transitions. Here, we report on such a source provides method generating correlated beams can be extended large number by using four-wave mixing (FWM) processes in hot rubidium vapor....
The deterministic teleportation of optical modes over a 6.0-km fiber channel is realized with continuous variable entanglement.
Non-classical states of light, which include squeezed and entangled are the cornerstone quantum mechanics information sciences. To date, non-classical light with much higher quality than before required to develop high-fidelity processing high-precision metrology. Squeezed approximately 10 dB noise below corresponding shot limit have been generated using a series methods, means that variance reaches few percent vacuum noise. Quantum teleportation, transferring an unknown state from sending...
Non-Gaussian states with Wigner negativity are of particular interest in quantum technology due to their potential applications computing and metrology. However, how create such at a remote location remains challenge, which is important for efficiently distributing resource between distant nodes network. Here, we experimentally prepare an optical non-Gaussian state negative function node via local operation shared Gaussian entangled existing steering. By performing photon subtraction on one...
Einstein-Podolsky-Rosen (EPR) steering exhibits an inherent asymmetric feature that differs from both entanglement and Bell nonlocality, which leads to one-way EPR steering. Although this phenomenon has been experimentally observed, the schemes manipulate direction of have not investigated thoroughly. In paper, we propose demonstrate three steering, either by varying noise on one party a two-mode squeezed state (TMSS) or transmitting TMSS in noisy channel. The dependence transmission...
Abstract In bioneuronal systems, the synergistic interaction between mechanosensitive piezo channels and neuronal synapses can convert transmit pressure signals into complex temporal plastic pulses with excitatory inhibitory features. However, existing artificial tactile neuromorphic systems struggle to replicate elaborate plasticity observed features in biological which is critical for biomimetic processing memorizing of information. Here we demonstrate a mechano-gated iontronic...
Subwavelength resonant nanostructures have facilitated strong light–matter interactions and tunable degrees of freedom light, such as spectrum, polarization, direction, thus boosting photonic applications toward light emission, manipulation, detection. For photodetection, enabled emerging technologies, detection ranging, spectrometers, polarimeters, within an ultracompact footprint. However, nanophotonics usually relies on nanofabrication technology, which suffers from the trade-offs between...
Using a nondegenerate four-wave mixing process in hot rubidium vapor, we demonstrate compact diode-laser-pumped system for the generation of intensity-difference squeezing down to 8 kHz with maximum -7 dB. To best our knowledge, this is first demonstration kilohertz-level using semiconductor laser as pump source. This scheme interest experiments involving atomic ensembles, quantum communications, and precision measurements. The would extend range possible applications due its low cost, ease...
Precise information about the temporal mode of optical states is crucial for optimizing their interaction efficiency between themselves and/or with matter in various quantum communication devices. Here we propose and experimentally demonstrate a method determining both real imaginary components single photon's density matrix by measuring autocorrelation function photocurrent from balanced homodyne detector at multiple local oscillator frequencies. We test our on photons heralded biphotons...
Spatially structured light has opened a wide range of opportunities for enhanced imaging as well optical manipulation and particle confinement. Here, we show that phase-coherent illumination with superpositions radial Laguerre-Gauss (LG) beams provides improved localization bright tweezer traps, narrowed axial intensity distributions. Further, the Gouy phase shifts sums tightly focused LG fields can be exploited novel phase-contrast strategies at wavelength scale. One example developed here...
Abstract The squeezed cat state, an essential quantum resource, can be used for error correction and slowing decoherence of the optical state. However, preparing a state with high generation rate, effectively manipulating it, remain challenging. In this work, high‐performance all‐optical in‐line squeezer is developed to prepare manipulate phase quadrature squeezing. This scheme has advantages that squeezing manipulated by changing working condition squeezer, higher rate achieved via...
Abstract Integrating nanophotonics and cold atoms has drawn increasing interest in recent years due to diverse applications quantum information science the exploration of many‐body physics. For example, dispersion‐engineered photonic crystal waveguides (PCWs) permit not only stable trapping probing ultracold neutral via interactions with guided‐mode light, but also possibility explore physics strong, photon‐mediated between atoms, as well atom‐mediated photons. While theoretical...
Orbital angular momentum (OAM) multiplexing provides an efficient method to improve data-carrying capacity in various quantum communication protocols. It is a precondition distribute OAM multiplexed resources channels for implementing communication. However, steering of optical fields and the effect channel noise on remain unclear. Here, we generate continuous-variable (CV) entangled states them lossy or noisy channels. We show that decoherence property entanglement carrying topological...
Quantum correlations and entanglement shared among multiple modes are fundamental ingredients of most continuous-variable quantum technologies. Recently, a method used to generate correlated beams using cascaded four-wave mixing (FWM) processes was theoretically proposed experimentally realized by our group [Z. Qin et al., Phys. Rev. Lett. 113, 023602 (2014)]. Our study triple-beam correlation paves the way showing tripartite in system. system also promises find applications information...
Using a nondegenerate four-wave mixing (FWM) process based on double-Λ scheme in hot cesium vapor, we demonstrate compact diode-laser-pumped quantum light source for the generation of correlated twin beams with maximum squeezing 6.5 dB. The is observed at Fourier frequency audio band down to 0.7 kHz which, best our knowledge, first observation sub-kilohertz intensity-difference an atomic system so far. A phase-matching condition also investigated system, which confirms spatial-multi-mode...
Using a nondegenerate four-wave mixing process based on double-$\mathrm{\ensuremath{\Lambda}}$ scheme in hot cesium vapor, we generate quantum correlated twin beams with maximum intensity-difference squeezing of 6.5 dB. The substantially improved can be mainly attributed to very good frequency and phase-difference stability between the pump probe our experiment. Intensity-difference observed within wide experimental parameter range, which guarantees its robust generation. Since this produces...
We combine nanophotonics and cold atom research in a new apparatus enabling the delivery of single-atom tweezer arrays vicinity photonic crystal waveguides.
Remote state preparation enables one to create and manipulate a quantum based on the shared entanglement between distant nodes. Here, we experimentally demonstrate remote manipulation of squeezed light. By performing homodyne projective measurement mode continuous variable entangled at Alice's station, is created Bob's station. Moreover, rotation displacement operations are applied prepared by changing parameters state. We also show that remotely robust against loss N - 1 states can be an...
Encoding information in the temporal-spectral mode of single photons attracts growing attention community photonic quantum technology. The temporal mode, with ultralong coherence time, from atomic ensembles is easy to control, but conventional photon-counting technique provides only amplitude temporal-mode function. This study develops a cavity-free homodyne detection scheme characterize...
Einstein-Podolsky-Rosen (EPR) steering is a quantum mechanical phenomenon that allows one party to steer the state of distant by exploiting their shared entanglement. It has potential applications in secure communication. In this paper, we present two swapping schemes Gaussian EPR steering, single-channel and dual-channel schemes, technique entanglement swapping. Two space-separated independent states without direct interaction after deterministic By comparing show transmission distance...
Generation of multimode quantum states has drawn much attention recently due to its importance for both fundamental science and the future development technologies. Here, by using a four-wave mixing process with conical pump beam, we have experimentally observed about -3.8 dB intensity-difference squeezing between single-axial probe beam conjugate beam. The multi-spatial-mode nature generated quantum-correlated beams been shown comparing variation tendencies noise under global attenuation...
Abstract Heisenberg’s original uncertainty relation is related to measurement effect, which different from the preparation relation. However, it has been shown that error disturbance not valid in some cases. We experimentally test error-tradeoff by using a continuous-variable Gaussian Einstein–Podolsky–Rosen (EPR)-entangled state. Based on quantum correlation between two entangled optical beams, errors amplitude and phase quadratures of one EPR beam coming joint are estimated, respectively,...
Multipartite Einstein-Podolsky-Rosen (EPR) steering is a useful quantum resource for communication in networks. It has potential applications secure communication, such as one-sided device-independent key distribution and secret sharing. By distributing optical modes of multipartite entangled state to space-separated nodes, local network can be established. Based on the existing EPR network, protocol accomplished. In this manuscript, we present swapping schemes between two Gaussian states,...