A5100617077- Dark Matter and Cosmic Phenomena
- Particle physics theoretical and experimental studies
- Cosmology and Gravitation Theories
- Topological Materials and Phenomena
- Computational Physics and Python Applications
- Galaxies: Formation, Evolution, Phenomena
- Particle Detector Development and Performance
- Random lasers and scattering media
- 2D Materials and Applications
- Quantum optics and atomic interactions
- Astrophysical Phenomena and Observations
- Photonic and Optical Devices
- Quantum and electron transport phenomena
- Mechanical and Optical Resonators
- Laser-Plasma Interactions and Diagnostics
- Nonlinear Photonic Systems
- Advanced Condensed Matter Physics
- Pulsars and Gravitational Waves Research
- Cardiac Fibrosis and Remodeling
- Superconducting Materials and Applications
- Optical Polarization and Ellipsometry
- Phase Equilibria and Thermodynamics
- Speech Recognition and Synthesis
- Adipose Tissue and Metabolism
- Advanced Fiber Laser Technologies
Institute of Theoretical Physics
2023-2025
University of Chinese Academy of Sciences
2022-2025
Institute of Physics
2022-2025
Chinese Academy of Sciences
2015-2025
National Laboratory for Superconductivity
2025
Peking University
2022-2023
Kavli Institute for Theoretical Sciences
2023
Beijing Institute of Technology
2023
Institute of Plasma Physics
2022
Xiangyang Central Hospital
2022
Motivated by the null results of current dark matter searches and small-scale problems, we study a sector charged spontaneous broken gauge <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mi>U</a:mi><a:mo stretchy="false">(</a:mo><a:mn>1</a:mn><a:msup><a:mo stretchy="false">)</a:mo><a:mo>′</a:mo></a:msup></a:math>. To explore parameter space this model, in addition to consideration data, also consider theoretical bounds on Higgs mass, with upper bound coming from...
In this work we study the possibility to detect gravitational waves generated by a secluded self-interacting dark sector. ``Secluded'' means that sector has almost no portal visible and thus its entropy is conserved itself, ``self-interacting'' matter in model significant interaction making it consistent with small-scale structure observations. A spontaneously broken $U(1)'$ introduced for interactions sector, nearly massless radiation also avoid over-closure problem. Through parameter space...
Polarization of photons plays a key role in quantum optics and light-matter interactions, however, it is difficult to control nanosystems since the eigenstate nanophotonic cavity usually fixed linearly polarized. Here, we reveal polarization using photonic molecules (PMs) that host supermodes two coupled nanobeam cavities. In contrast conventional PMs 2D crystal slab, for 1D cavities shift gap between them can be tuned continuously. With an ultra subwavelength gap, coupling dominated by...
Abstract Non-orthogonal eigenstates are a fundamental feature of non-Hermitian systems and accompanied by the emergence nontrivial features. However, platforms to explore mode couplings mainly measure near-field effects, far-field behaviours remain mostly unexplored. Here, we study how microcavity with coupling exhibits eigenstate non-orthogonality investigating spatial field polarization cavity modes. The non-Hermiticity arises from asymmetric backscattering, which is controlled integrating...
Single photon emission of quantum emitters (QEs) carrying internal degrees freedom such as spin and angular momentum plays an important role in optics. Recently, QEs two-dimensional semiconductors have attracted great interest promising light sources. However, whether those are characterized by the same valley physics delocalized excitons is still under debate. Moreover, potential applications need to be explored. Here we show experimental evidence symmetry breaking for neutral WSe2...
We report the fourth installment in series of Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) Quasar Survey, which includes quasars observed between September, 2017 and June, 2021. There are total 13,066 reliably identified, 6,685 newly discovered that not reported SDSS DR14 quasar catalog or Million Quasars catalog. Because LAMOST does provide accurate absolute flux calibration, we re-calibrate spectra with SDSS/Pan-STARRS1 multi-band photometric data. The emission line...
For the light relativistic dark matter (DM) boosted by high energy cosmic ray, its scattering cross section with nucleon is sensitively dependent on momentum-transfer and such an dependence caused mediator in scattering. puffy DM particle a size, can also arise from radius effect. All these dependences should be considered. In this note we study direct detection limits ray-boosted for simplified model mediator. comparison, first re-derive point-like DM. We display various planes of...
Light Higgsinos below several hundred GeV are favored or required by the naturalness of low-energy supersymmetry. If only light while other sparticles sufficiently heavy, we have so-called Higgsino scenario. Confronted with muon $g\ensuremath{-}2$ data, this scenario is examined in work. Since lightest sparticle Higgsino-like, need to also consider dark matter constraints. Assuming a mass parameter $\ensuremath{\mu}$ range 100--400 gaugino parameters above TeV, explore space under data and...
This is a brief overview on the low energy supersymmetry in light of current experiments including LHC searches, dark matter (DM) detections, muon $g-2$ and CDF II measurement W-boson mass. We focus minimal framework supersymmetry, namely supersymmetric model (MSSM), obtain following conclusions: (i) The MSSM can survive all experiments, albeit suffering from little hierarchy problem due to heavy stops pushed up by searches; (ii) DM relic density be readily achieved thermal freeze-out...
As a newly developed method for fabricating Josephson junctions, focused helium ion beam has the advantage of producing reliable and reproducible junctions. We fabricated junctions with on our 50 nm YBa 2 Cu 3 O 7 – δ (YBCO) thin films. junction irradiation doses ranging from 100 to 300 ions/nm demonstrated that barrier can be modulated by dose within this range, behave like superconductor–normal conductor–superconductor The measurements I V characteristics, Fraunhofer diffraction pattern,...
We investigate the effect of disorder on topologically nontrivial states in a two dimension (2D) mechanical system. first propose quantum spin Hall (QSH) insulator based an out-of-plane spring-mass model and analytically study interplay between topology both trivial systems. adopt Bott index to characterize topological property disordered By tracking evolution with increase disorders, we quantitatively demonstrate induced transition from QSH insulator. then validate phase through transient...
C1q/TNF-related proteins 1 (CTRP1) is a recently identified adiponectin associated with obesity-linked disorders and adverse cardiovascular events. The effect of CTRP1 on cardiac fibrosis has not yet been fully elucidated; thus, we aimed to explore this association.In experimental study, mouse model was established by administering isoproterenol (ISO) (subcutaneously injecting 10 mg/kg/day for 3 days then 5 11 days). Mice were also injected recombinant protein (200 μg/kg) 14 after the final...
Abstract In the realm of natural supersymmetric models, higgsinos are typically lightest electroweakinos. gauge-mediated supersymmetry breaking higgsino-dominated particles decay into a Z -boson or Higgs boson ( h ), along with an ultra-light gravitino $$\tilde{G}$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mover> <mml:mi>G</mml:mi> <mml:mo>~</mml:mo> </mml:mover> </mml:math> ) serving as particle (LSP). This scenario suggests significant non-resonant hh production....
A bstract We examine the Sommerfeld enhancement effect for puffy self-interacting dark matter. find out two new parameters to classify self-scattering cross section into Born, resonance and classical regimes Then we observe that peaks matter have same locations. Further, a large ratio between R χ (radius of particle) 1/ m ϕ (force range), factor approaches 1 (no enhancement). Finally, SIDM scenario solve small-scale problems, values are displayed in allowed parameter regions.
A bstract light (GeV mass) long-lived ( cτ around dozens of millimeters) CP-odd scalar can be readily predicted in new physics models. In this work we investigate the Higgs decay into such a plus Z -boson and take aligned two-Higgs-doublet model (2HDM) as an example. This scalar, with dominant to tau leptons, will fly over distance from production point present displaced vertex Inner Detector generally purposed experiment like ATLAS or CMS. our study focus on LHC perform Monte Carlo...
For the light relativistic dark matter (DM) boosted by high energy cosmic ray, its scattering cross section with nucleon is sensitively dependent on momentum-transfer and such an dependence caused mediator in scattering. puffy DM particle a size, can also arise from radius effect. All these dependences should be considered. In this note we study direct detection limits ray-boosted for simplified model mediator. comparison, first re-derive point-like DM. We display various planes of...
Single charge control of localized excitons (LXs) in two-dimensional transition metal dichalcogenides (TMDCs) is crucial for potential applications quantum information processing and storage. However, traditional electrostatic doping method by applying metallic gates onto TMDCs may cause inhomogeneous distribution, optical quenching, energy loss. Herein, locally controlling the ferroelectric polarization thin film BiFeO3 (BFO) with a scanning probe, we can deterministically manipulate type...
We report the slow-light enhanced spin-resolved in-plane emission from a single quantum dot (QD) in photonic crystal waveguide (PCW). The slow light dispersions PCWs are designed to match wavelengths of QDs. resonance between two spin states emitted QD and mode is investigated under magnetic field with Faraday configuration. Two experience different degrees enhancement as their shifted by combining diamagnetic Zeeman effects an optical excitation power control. A circular polarization degree...
Chiral light-matter interactions supported by topological edge modes at the interface of valley photonic crystals provide a robust method to implement unidirectional spin transfer. The possess pair counterpropagating modes. are against sharp bend $60^{\circ}$ and $120^{\circ}$, which can form resonator with whispering gallery Here, we demonstrate asymmetric emission chiral coupling from single quantum dots in tuning between emitter mode. Under magnetic field Faraday configuration, exciton...
We examine the Sommerfeld enhancement effect for puffy self-interacting dark matter. find out two new parameters to classify self-scattering cross section into Born, resonance and classical regimes Then we observe that peaks matter have same locations. Further, a large ratio between $R_{\chi}$ (radius of particle) $1/m_{\phi}$ (force range), factor approaches 1 (no enhancement). Finally, SIDM scenario solve small-scale problems, values are displayed in allowed parameter regions.
We investigate the effect of disorder on topologically nontrivial states in a two-dimensional (2D) mechanical system. first propose quantum spin Hall (QSH) insulator based an out-of-plane spring-mass model and analytically study interplay between topology both trivial systems. adopt Bott index to characterize topological property disordered By tracking evolution with increase disorders, we quantitatively demonstrate induced transition from QSH insulator. then validate phase through transient...
We present a set of Lorentz invariant kinematic variables for reconstructing mass semi-invisible decaying particles pair-produced at lepton colliders, ${m}_{\mathrm{RC}}^{\mathrm{min}}$, ${m}_{\mathrm{RC}}^{\mathrm{max}}$, and ${m}_{\mathrm{LSP}}^{\mathrm{max}}$, with analytical formulas. They give the minimal maximum bounds particle upper bound invisible mass. In search new physics, these can greatly enhance statistical significance signal. For process smuon pair production...