429 citations · 1k across the 26 of their papers we have counts for
27 papers
Global multimode squeezing in a train of ultrashort pulses from unbalanced SU(1,1) interferometers
Wen Zhao, Xiao Liu, Yunxiao Zhang +2
Time-domain multiplexed continuous-variable quantum states provide a promising route toward large-scale quantum networks. Existing platforms are based on continuous-wave pumped opt…
Thermal stable nonlinear Raman-Nath diffraction and Cherenkov radiation in PPKTP crystals
Tao Xie, YangMing Liu, WenXin Zhu +2
Nonlinear Raman-Nath diffraction (NRND) and nonlinear Cherenkov radiation (NCR) are significant nonlinear diffraction phenomena in optics. Previous studies have primarily focused o…
Distribution of non-Gaussian states in a deployed telecommunication fiber channel
Casper A. Breum, Xueshi Guo, Mikkel V. Larsen +4
Optical non-Gaussian states hold great promise as a pivotal resource for advanced optical quantum information processing and fault-tolerant long-distance quantum communication. Est…
Optical interference by amplitude measurement
Yunxiao Zhang, Xuan Tang, Xueshi Guo +3
Interference effects are usually observed by intensity measurement. Path indistinguishability by quantum complementarity principle requires projection of the interfering fields int…
Full characterization of an all fiber source of heralded single photons
Yunxiao Zhang, Liang Cui, Xueshi Guo +3
We demonstrate a heralded single photon source which is based on the photon pairs generated from pulse pumped spontaneous four wave mixing in a piece of commercially available disp…
Frequency tuning of a squeezed vacuum state using interferometric enhanced Bragg diffraction effect
Qiqi Deng, Wenqi Li, Xueshi Guo +1
We experimentally demonstrate the optical frequency tuning of a squeezed vacuum state generated from an optical parametric oscillator by using an acousto-optic modulator based bi-f…
Multi-mode quantum correlation generated from an unbalanced SU(1,1) interferometer using ultra-short laser pulses as pump
Xueshi Guo, Wen Zhao, Xiaoying Li +1
Multi-mode entanglement is one of the critical resource in quantum information technology. Generating large scale multi-mode entanglement state by coherently combining time-delayed…
Phase Dependent Hanbury-Brown and Twiss effect
Xuan Tang, Yunxiao Zhang, Xueshi Guo +3
Hanbury-Brown and Twiss (HBT) effect is the foundation for stellar intensity interferometry. However, it is a phase insensitive two-photon interference effect. In this paper, we ex…
Quantum entangled Sagnac interferometer
Wen Zhao, Xuan Tang, Xueshi Guo +2
SU(1,1) interferometer (SUI) is a novel type of interferometer that uses directly entangled quantum fields for sensing phase change. For rotational sensing, Sagnac geometry is usua…
Time-domain measurement of ultra-fast intensity difference squeezed pulse pairs generated in fiber
Wen Zhao, Xueshi Guo, Xiaoying Li
Pulsed pumped four-wave mixing process via non-linearity in optical fiber can generate optical pulses with continuous variable quantum correlation. However, pair-wise cor…
An acousto-optic modulator based bi-frequency interferometer for quantum technology
Wenqi Li, Qiqi Deng, Xueshi Guo +1
We demonstrate a high performance AOM based bi-frequency interferometer, which can realize either beating or beating free interference for single photon level quantum state. Visibi…
Temporal coherence of optical fields in the presence of entanglement
Yunxiao Zhang, Nan Huo, Liang Cui +5
In classical coherence theory, coherence time is typically related to the bandwidth of the optical field. Narrowing the bandwidth will result in the lengthening of the coherence ti…
40 km Fiber Transmission of Squeezed Light Measured with a Real Local Oscillator
Iyad Suleiman, Jens Arnbak Holbøll Nielsen, Xueshi Guo +4
We demonstrate the generation, 40 km fiber transmission, and homodyne detection of single-mode squeezed states of light at 1550 nm using real-time phase control of a locally genera…
Measurement-dependent erasure of distinguishability for the observation of interference in an unbalanced SU(1,1) interferometer
Nan Huo, Liang Cui, Yunxiao Zhang +4
It is known that quantum interference can disappear with the mere possibility of distinguishability without actually performing the act. We create such distinguishability in an unb…
Deterministic multi-mode gates on a scalable photonic quantum computing platform
Mikkel V. Larsen, Xueshi Guo, Casper R. Breum +2
Quantum computing can be realized with numerous different hardware platforms and computational protocols. A highly promising approach to foster scalability is to apply a photonic p…
Boosting the secret key rate in a shared quantum and classical fibre communication system
Davide Bacco, Beatrice Da Lio, Daniele Cozzolino +14
During the last 20 years, the advance of communication technologies has generated multiple exciting applications. However, classical cryptography, commonly adopted to secure curren…
A Compact, Mobile, Low-Threshold Squeezed Light Source
Jens Arnbak, Christian Scheffmann Jacobsen, Rayssa Bruzaca de Andrade +4
Strongly squeezed light finds many important applications within the fields of quantum metrology, quantum communication and quantum computation. However, due to the bulkiness and c…
Deterministic generation of a two-dimensional cluster state
Mikkel V. Larsen, Xueshi Guo, Casper R. Breum +2
Measurement-based quantum computation offers exponential computational speed-up via simple measurements on a large entangled cluster state. We propose and demonstrate a scalable sc…
Distributed quantum sensing in a continuous variable entangled network
Xueshi Guo, Casper R. Breum, Johannes Borregaard +6
Networking plays a ubiquitous role in quantum technology. It is an integral part of quantum communication and has significant potential for upscaling quantum computer technologies…
Fiber coupled EPR-state generation using a single temporally multiplexed squeezed light source
Mikkel V. Larsen, Xueshi Guo, Casper R. Breum +2
A prerequisite for universal quantum computation and other large-scale quantum information processors is the careful preparation of quantum states in massive numbers or of massive…
Quantum information tapping using a fiber optical parametric amplifier with noise figure improved by correlated inputs
Xueshi Guo, Nannan Liu, Xiaoying Li +2
One of the important function in optical communication system is the distribution of information encoded in an optical beam. It is not a problem to accomplish this in a classical s…
Multi-mode theory of pulsed twin beams generation using a high gain fiber optical parametric amplifier
Xueshi Guo, Xiaoying Li, Nannan Liu +1
Using the Bogoliubov transformation in multi-frequency modes to describe the evolution of the non-degenerate signal and idler twin beams, we theoretically investigate the quantum n…
An all-fiber source of pulsed twin beams at telecom band for quantum communication
Xueshi Guo, Xiaoying Li, Nannan Liu +2
Motivated by the pursuit of a simple system to produce non-classical light sources for long- distance quantum communication, we generate for the first time an all-fiber source of p…
Effect of chromatic dispersion induced chirp on the temporal coherence property of individual beam from spontaneous four wave mixing
Xiaoxin Ma, Xiaoying Li, Liang Cui +2
Temporal coherence of individual signal or idler beam, determined by the spectral correlation property of photon pairs, is important for realizing quantum interference among indepe…