supported by the Special Project for Research and Development in Key Areas of Guangdong Province(Grant No.2020B0303300001);the National Natural Science Foundation of China(Grant Nos.U21A20434,12074346,12074390,11835011,11804375,11804308);the Key Laboratory of Guangzhou for Quantum Precision Measurement(Grant No.202201000010)。
Stochastic resonance is a counterintuitive phenomenon amplifying the weak periodic signal by application of external noise.We demonstrate the enhancement of a weak periodic signal by stochastic resonance in a trappedi...
supported by the National Key Research and Development Program of China(Grant No.2017YFA0303100);the National Natural Science Foundation of China(Grant Nos.11974306 and 12034017);the Natural Science Foundation of Zhejiang Province(Grant No.2021C01002)。
A central research topic in condensed matter physics is the understanding of the evolution of various phases and phase transitions under different tuning parameters such as temperature, magnetic field and pressure. To...
Supported by the National Key Research and Development Program of China(Grant Nos.2019YFA0705000 and 2017YFA0303700);the Key R&D Program of Guangdong Province(Grant No.2018B030329001);the Leading-Edge Technology Program of Jiangsu Natural Science Foundation(Grant No.BK20192001);the National Natural Science Foundation of China(Grant Nos.51890861,11690031,11621091,and 11674169)。
We demonstrate a broadband optical parametric oscillation,using a sheet cavity,via cavity phase-matching.A21.2 THz broad comb-like spectrum is achieved,with a uniform line spacing of 133.0 GHz,despite a relatively lar...
National Natural Science Foundation of China(Grant Nos.11675119,11575125,and 11105097)。
We study the algebraic structure of the one-dimensional Dirac oscillator by extending the concept of spin symmetry to a noncommutative case.An SO(4)algebra is found connecting the eigenstates of the Dirac oscillator,i...
National Key R&D Program of China(Grant No.2017YFC0110301);National Natural Science Foundation of China(Grant Nos.91950113,61575219,61210017,11774234,11674386,11434016,and 91850209);Strategic Priority Research Program of the CAS(Grant No.XDB23030203);Youth Innovation Promotion Association of the CAS(Grant No.2018007)。
A monolithic O-f scheme-based femtosecond optical frequency comb directly driven by a high-power Ti:sapphire laser oscillator is demonstrated.The spectrum covering from 650 nm to 950 nm is generated from the Ti:sapphi...
Supported by the National Natural Science Foundation of China under Grant No 11275100;the K.C.Wong Magna Foundation of Ningbo University
We investigate the effects of the initial-slip term by studying the dissipation-induced transition probabilities between any two eigenstates of a simple harmonic oscillator. The general analytical expressions for the ...
Supported by the National Natural Science Foundation of China under Grant Nos 11204203 and 61274089;the International Technology Collaboration Program of Shanxi Province under Grant No 201481029-2
The zero-magnetic-field oscillation behavior of spin torque nano-oscillator (STNO) with a perpendicularly mag- netized free layer with second-order uniaxial anisotropy is studied theoretically based on the Landau-Li...
Supported by the National Natural Science Foundation of China under Grant Grant Nos 11162019 and 11047003
The Kuramoto model for an ensemble of coupled oscillators provides a paradigmatic example of non-equilibrium transitions between an incoherent and a synchronized state. A frequency-weighted network of Kuramoto oscilla...
Supported by the National Natural Science Foundation of China under Grant No 51277165;the Natural Science Foundation of Zhejiang Province under Grant No LY15F10001
This work focuses on how to maintain a high-energy orbit motion of a bistable oscillator when subjected to a low level excitation. An elastic magnifier (EM) positioned between the base and the bistable oscillator is...
Supported by the National High-Technology Research and Development Program of China under Grant No 2013AA031501;the Fundamental Research Funds for the Central Universities under Grant No 2014TS017
We demonstrate a kW continuous-wave ytterbium-doped all-fiber laser oscillator with M1 domestic fiber compo- nents: a 7× I fused fiber bundle combiner, a fiber Bragg grating and a double-clad gain fiber. The oscilla...