-symmetric quantum mechanics
It is generally assumed that a Hamiltonian for a physically acceptable quantum system (one
that has a positive-definite spectrum and obeys the requirement of unitarity) must be …
that has a positive-definite spectrum and obeys the requirement of unitarity) must be …
Non-Hermitian dynamics and non-reciprocity of optically coupled nanoparticles
Non-Hermitian dynamics, as observed in photonic, atomic, electrical and optomechanical
platforms, holds great potential for sensing applications and signal processing. Recently …
platforms, holds great potential for sensing applications and signal processing. Recently …
Anomalous Thermodynamic Cost of Clock Synchronization
C Yang, J Sheng, H Wu - Reports on Progress in Physics, 2023 - iopscience.iop.org
Clock synchronization is critically important in positioning, navigation and timing systems.
While its performance has been intensively studied in a wide range of disciplines, much less …
While its performance has been intensively studied in a wide range of disciplines, much less …
Giant enhancement of nonlinear harmonics of an optical-tweezer phonon laser
G ** linear resonator
Phase transition from the over-dam** to under-dam** states is a ubiquitous
phenomenon in physical systems. However, what kind of symmetry is broken associated …
phenomenon in physical systems. However, what kind of symmetry is broken associated …
Quantum squeezing induced nonreciprocal phonon laser
Phonon lasers or coherent amplifications of mechanical oscillations are powerful tools for
fundamental studies on coherent acoustics and hold potential for diverse applications …
fundamental studies on coherent acoustics and hold potential for diverse applications …
Optomechanical dark-mode-breaking cooling
Y Cao, C Yang, J Sheng, H Wu - Physical Review Letters, 2025 - APS
Optomechanical cooling of multiple degenerate mechanical modes is prevented by the
mechanical dark mode due to destructive interference. Here, we report the first experimental …
mechanical dark mode due to destructive interference. Here, we report the first experimental …