A5016008482- Cold Atom Physics and Bose-Einstein Condensates
- Atomic and Subatomic Physics Research
- Quantum Information and Cryptography
- Quantum, superfluid, helium dynamics
- Quantum Mechanics and Applications
- Quantum Computing Algorithms and Architecture
- Mechanical and Optical Resonators
- Quantum Mechanics and Non-Hermitian Physics
- Quantum optics and atomic interactions
- Quantum chaos and dynamical systems
- Force Microscopy Techniques and Applications
- Advanced Fiber Laser Technologies
- Laser Material Processing Techniques
- Advanced Frequency and Time Standards
- Advanced MEMS and NEMS Technologies
- Nonlinear Optical Materials Studies
- Hemodynamic Monitoring and Therapy
- Quantum many-body systems
- Photorefractive and Nonlinear Optics
- Regional Economic and Spatial Analysis
- Manufacturing Process and Optimization
- Carbon Nanotubes in Composites
- Education and Work Dynamics
- Quantum Electrodynamics and Casimir Effect
- Economic Zones and Regional Development
Sun Yat-sen University
2007-2025
State Key Laboratory of Optoelectronic Materials and Technology
2025
Key Laboratory of Guangdong Province
2025
Quantum Science Center of Guangdong-Hong Kong-Macao Greater Bay Area
2024-2025
Yunnan Agricultural University
2025
Affiliated Hospital of Youjiang Medical University for Nationalities
2024
Beijing Academy of Quantum Information Sciences
2022-2023
Chengdu Technological University
2021
South China National Centre of Metrology
2021
Wuhan University of Science and Technology
2021
Abstract Open physical systems with balanced loss and gain, described by non-Hermitian parity-time $$\left( {{\cal P}{\cal T}} \right)$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mfenced> <mml:mrow> <mml:mi>P</mml:mi> <mml:mi>T</mml:mi> </mml:mrow> </mml:mfenced> </mml:math> reflection symmetric Hamiltonians, exhibit a transition which could engender modes that exponentially decay or grow time, thus spontaneously breaks the $${\cal T}$$ -symmetry. Such -symmetry-breaking...
Sound waves are excited in an optically trapped degenerate Fermi gas of spin-up and spin-down atoms with magnetically tunable interactions. Measurements made throughout the crossover region, from a weakly interacting through resonant superfluid regime to Bose condensate dimer molecules. The measured sound velocities test theories hydrodynamic wave propagation predictions equation state. At resonance, velocity exhibits universal scaling velocity, within 1.8% over factor 30 density.
We report a model-independent measurement of the entropy, energy, and critical temperature degenerate, strongly interacting Fermi gas atoms. The total energy is determined from mean square cloud size in regime, where exhibits universal behavior. entropy measured by sweeping bias magnetic field to adiabatically tune regime weakly known after sweep. dependence on quantitatively tests predictions finite-temperature thermodynamics.
In this paper, the performance of catalytic oxidative desulfurization from model oil was studied using a catalyst molybdenum supported on modified medicinal stone (Mo/MMS).
We report the observation of spin segregation, i.e., time-dependent separation density profiles two states, in a trapped, coherently prepared Fermi gas $^{6}\mathrm{Li}$ with magnetically tunable scattering length ${a}_{12}$ close to zero. For $|{a}_{12}|\ensuremath{\simeq}5\text{ }\mathrm{bohr}$, as cloud evolve, measured difference densities at center increases 200 ms from 0 $\ensuremath{\simeq}60%$ initial mean and changes sign ${a}_{12}$. The data are disagreement both amplitude temporal...
We present the design and implementation of a trapped ion-cavity QED system. A single ytterbium ion is confined by micron-scale trap inside 2-mm optical cavity. The coherently pumped near-resonant laser light while cavity output monitored as function pump intensity detuning. observe Purcell enhancement scattered into solid angle subtended cavity, well three-peak structure arising from strongly driving atom. This system can be integrated existing atom-photon quantum network protocols pathway...
The decay of any unstable quantum state can be inhibited or enhanced by carefully tailored measurements, known as the Zeno effect (QZE) anti-Zeno (QAZE). To date, studies QZE (QAZE) transitions have since expanded to various system-environment coupling, in which time evolution suppressed (enhanced) not only projective measurement but also through dissipation processes. However, a general criterion, could extend arbitrary strength and periodicity, is still lacking. In this letter, we show...
Abstract Quantum speed limit (QSL), the lower bound of time for transferring an initial state to a target one, is fundamental interest in quantum information processing. Despite that unitary evolution could be well analyzed by either Mandelstam–Tamm or Margolus–Levitin bound, there are still many unknowns QSL open systems. A particularly exciting result about can made arbitrarily small without violating time-energy uncertainty principle, whenever dynamics governed parity-time ( <?CDATA...
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Abstract Storage batteries with elevated energy density, superior safety and economic costs continues to escalate. Batteries can pose hazards due internal short circuits, open circuits other malfunctions during usage, hence real-time surveillance error diagnosis of the battery’s operational state is imperative. In this paper, a three-dimensional model electrochemical-magnetic field-thermal coupling formulated lithium-ion pouch cells as research focus, spatial distribution pattern physical...
Abstract A novel optical method for distinguishing chiral molecules is proposed and tested within a quantum simulator employing trapped-ion qudit. This approach correlates the sign disparity of dipole moment with distinct cyclic evolution trajectories, yielding unity population contrast induced by different non-Abelian holonomies corresponding to chirality. Harnessing principles holonomic computation (HQC), our can achieve highly efficient, nonadiabatic, robust detection separation...
Addressing the black hole information paradox necessitates exploration of various hypotheses and theoretical frameworks. Among these, proposition to utilize quantum entanglement, as introduced by Don N. Page, shows great promise. This study builds upon Page’s foundation proposes a simplified model for elucidating evolution von Neumann entropy. simulates process Hawking radiation using entangled photon pairs. Our experiment suggests that entanglement may offer plausible avenue resolving...
The Leggett-Garg inequality (LGI) is a powerful tool for distinguishing between quantum and classical properties in studies of macroscopic systems. Applying the LGI to non-Hermitian systems with dissipation presents fascinating opportunity, as competing mechanisms can either strengthen or weaken violations. On one hand, dissipation-induced nonlinear interactions amplify violations compared Hermitian systems; on other leads decoherence, which could violation. In this paper, we investigate...
Abstract Distributed quantum computation has gained significant interest in the noisy intermediate‐scale (NISQ) era. This paradigm requires each computing node to possess a reduced number of qubits and gates. In this study, Simon's Algorithm (DSA) is designed tackle problem, which entails discovery hidden string promised Boolean function , where if only or . Specifically, 1) our algorithm capable being partitioned into any nodes, ; 2) queries required by DSA while that original (SA) 3)...
Multiple foci and a long filament are observed when we focus femtosecond laser pulse into fused-silica sample. The dependences of the intensity distribution plasma luminescence on energy numerical aperture (NA) focusing objective investigated. NA ≤0.65. A tail is formed instead multiple 0.85. physical image femtoseond propagation given by model based nonlinear Schrödinger equation.