69 citations · 146 across the 15 of their papers we have counts for
15 papers
Quantum-Enhanced Atomic Sensor via Spin Nonequilibrium Criticality
Ding Huang, Minwei Shi, Guzhi Bao +2
The sensitivity of quantum sensors is fundamentally constrained by the standard quantum limit (SQL) arising from intrinsic quantum fluctuations. While non-classical resources like…
Quantum-elevated Chiral Discrimination for Bio-molecules
Yiquan Yang, Xiaolong Hu, Wei Du +4
Chiral discrimination of enantiomeric biomolecules is vital in chemistry, biology, and medicine. Conventional methods, relying on circularly polarized light, face weak chiroptical…
Frequency Range Boosted Magnetometry Beyond the Spin Coherence Limit via Compressive Sensing
Ruiqi Wang, Peiyu Yang, Ding Huang +2
Free induction decay (FID) of spin precession serves as an essential tool for quantum sensing across diverse platforms. While extending spin coherence time remains critical for sen…
Near-perfect broadband quantum memory enabled by intelligent spinwave compaction
Jinxian Guo, Zeliang Wu, Guzhi Bao +4
Quantum memory, a pivotal hub in quantum information processing, is expected to achieve high-performance storage and coherent manipulation of quantum states, with memory efficiency…
Quantum Twin Interferometers
Wei Du, Shuhe Wu, Dong Zhang +6
Quantum-correlated interferometer is a newly emerging tool in quantum technology that offers classical-limit-breaking phase sensitivity. But to date, there exists a configurational…
Quantum Metrology with Higher-order Exceptional Points in Atom-cavity Magnonics
Minwei Shi, Guzhi Bao, Jinxian Guo +1
Exceptional points (EPs), which arose early from non-Hermitian physics, significantly amplify the system's response to minor perturbations, and they act as a useful concept to enha…
Quantum Locking of Intrinsic Spin Squeezed State in Earth-field-range Magnetometry
Peiyu Yang, Guzhi Bao, Jun Chen +3
In the Earth-field range, the nonlinear Zeeman (NLZ) effect has been a bottleneck limiting the sensitivity and accuracy of atomic magnetometry from physical mechanism. To break thi…
Quantum-enhanced Electrometer based on Microwave-dressed Rydberg Atoms
Shuhe Wu, Dong Zhang, Zhengchun Li +6
Rydberg atoms have been shown remarkable performance in sensing microwave field. The sensitivity of such an electrometer based on optical readout of atomic ensemble has been demons…
Sensing performance enhancement via asymmetric gain optimization in the atom-light hybrid interferometer
Zhifei Yu, Bo Fang, Shuying Chen +4
The SU (1,1)-type atom-light hybrid interferometer (SALHI) is a kind of interferometer that is sensitive to both the optical phase and atomic phase. However, the loss has been an u…
Coherence Protection of Electron Spin in Earth-field Range by All-optical Dynamic Decoupling
Peiyu Yang, Guzhi Bao, L. Q. Chen +1
In recent years, unshielded atomic systems have been attracting researchers' attention, in which decoherence is one of the major problems, especially for high precision measurement…
SU(2)-in-SU(1,1) Nested Interferometer for Highly Sensitive, Loss-Tolerant Quantum Metrology
Wei Du, Jia Kong, Jun Jia +6
We present experimental and theoretical results on a new interferometer topology that nests a SU(2) interferometer, e.g., a Mach-Zehnder or Michelson interferometer, inside a SU(1,…
Evidence for degenerate mirrorless lasing in alkali metal vapor: forward beam magneto-optical experiment
Aram Papoyan, Svetlana Shmavonyan, Aleksandr Khanbekyan +6
We report an experimental observation of degenerate mirrorless lasing in forward direction under excitation of a dilute atomic Rb vapor with a single linearly polarized cw laser li…
All-Optical Spin Locking in Alkali-Vapor Magnetometers
Guzhi Bao, Dimitra Kanta, Dionysios Antypas +5
The nonlinear Zeeman effect can induce splittings and asymmetries of magnetic-resonance lines in the geophysical magnetic-field range. We demonstrate a scheme to suppress the nonli…
Suppression of nonlinear Zeeman effect and heading error in earth-field-range alkali-vapor magnetometers
Guzhi Bao, Arne Wickenbrock, Simon Rochester +1
The nonlinear Zeeman effect can induce splitting and asymmetries of magnetic-resonance lines in the geophysical magnetic field range. This is a major source of "heading error" for…
A compact 3.5-dB squeezed light source with atomic ensembles
Guzhi Bao, Xiaotian Feng, Bing Chen +4
We reported a compact squeezed light source consisting of an diode laser near resonant on 87Rb optical D1 transition and an warm Rubidium vapor cell. The -4dB vacuum squeezing at 7…