Secure quantum key distribution with realistic devices
In principle, quantum key distribution (QKD) offers information-theoretic security based on
the laws of physics. In practice, however, the imperfections of realistic devices might …
the laws of physics. In practice, however, the imperfections of realistic devices might …
Diffusion metamaterials
Diffusion and wave propagation are both fundamental transport mechanisms, but they have
intrinsically different dynamics, governing equations, and applications. Over the past …
intrinsically different dynamics, governing equations, and applications. Over the past …
Experimental Determination of -Symmetric Exceptional Points in a Single Trapped Ion
L Ding, K Shi, Q Zhang, D Shen, X Zhang, W Zhang - Physical Review Letters, 2021 - APS
Exceptional points (EPs) of a non-Hermitian Hamiltonian with parity-time-reversal (PT)
symmetry have the potential to drastically enhance the capabilities of metrology and sensing …
symmetry have the potential to drastically enhance the capabilities of metrology and sensing …
Breaking anti-PT symmetry by spinning a resonator
Non-Hermitian systems, with symmetric or antisymmetric Hamiltonians under the parity-time
(PT) operations, can have entirely real or imaginary eigenvalues. This fact has led to …
(PT) operations, can have entirely real or imaginary eigenvalues. This fact has led to …
Unconventional singularity in anti-parity-time symmetric cavity magnonics
By engineering an anti-parity-time (anti-PT) symmetric cavity magnonics system with precise
eigenspace controllability, we observe two different singularities in the same system. One …
eigenspace controllability, we observe two different singularities in the same system. One …
Synthetic anti-PT symmetry in a single microcavity
F Zhang, Y Feng, X Chen, L Ge, W Wan - Physical review letters, 2020 - APS
Non-Hermitian systems based on parity-time (PT) and anti-PT symmetry reveal rich physics
beyond the Hermitian regime. So far, realizations of such symmetric systems have been …
beyond the Hermitian regime. So far, realizations of such symmetric systems have been …
Exceptional-point-engineered cavity magnomechanics
TX Lu, H Zhang, Q Zhang, H **g - Physical Review A, 2021 - APS
We theoretically study the role of the exceptional point (EP) in a non-Hermitian cavity
magnomechanical (CMM) system, with a tunable dissipative magnon-photon coupling. We …
magnomechanical (CMM) system, with a tunable dissipative magnon-photon coupling. We …
Topological physics of non-Hermitian optics and photonics: a review
The notion of non-Hermitian optics and photonics rooted in quantum mechanics and
photonic systems has recently attracted considerable attention ushering in tremendous …
photonic systems has recently attracted considerable attention ushering in tremendous …
Observation of anti-parity-time-symmetry, phase transitions and exceptional points in an optical fibre
The exotic physics emerging in non-Hermitian systems with balanced distributions of gain
and loss has recently drawn a great deal of attention. These systems exhibit phase …
and loss has recently drawn a great deal of attention. These systems exhibit phase …
Nonlinear exceptional points with a complete basis in dynamics
Exceptional points (EPs) are special spectral singularities at which two or more eigenvalues,
and their corresponding eigenvectors, coalesce and become identical. In conventional …
and their corresponding eigenvectors, coalesce and become identical. In conventional …