Non-Hermitian dynamicsphotonic transportThe interaction of a discrete state coupled to a continuum is a longstanding problem of major interest in different areas of quantum and classical physics. In Hermitian models, several dynamical decoupling schemes have been suggested, in which the discrete-...
M. Znojil. Non-Hermitian interaction representation and its use in relativistic quan- tum mechanics. Ann. Physics, 385:162-179, 2017. (P. V. Hai) National University of Singapore, Singapore E-mail address: isepvh@nus.edu.sg (M. Putinar) University of California at Santa Barbara, CA, ...
The required modification of the sum rule for such an interaction is given explicitly but it introduces several quantities that cannot be measured directly; therefore the modified sum rule does not provide useful general information concerning the validity of T invariance. 展开 ...
We consider the interaction between the Hermitian world, represented by a real delta-function potential -\\alpha\\delta(x) -\\alpha\\delta(x) , and the non... Jones,F H. - 《Physical Review D Particles & Fields》 被引量: 62发表: 2008年 Results on Certain Non‐Hermitian Hamiltonians ...
We theoretically demonstrate non-Hermitian indirect interaction between two magnetic impurities placed at the interface between a 3D topological insulator and a ferromagnetic metal. The coupling of topological insulator and the ferromagnet introduces not only Zeeman exchange field on the surface states but ...
Non-Hermitian theory is a theoretical framework used to describe open systems. It offers a powerful tool in the characterization of both the intrinsic degrees of freedom of a system and the interactions with the external environment. The non-Hermitian framework consists of mathematical structures that...
We present a simple non-Hermitian model to describe the phenomenon of asymmetric tunneling between two energy-degenerate sites coupled by a non-reciprocal interaction without dissipation. The system was described using a biorthogonal family of energy eigenvectors, the dynamics of the system was determine...
By engineering the interaction with the bath and the bath itself, the atomic properties can be influenced in an unprecedented manner. In particular, we find the atomic emission can be suppressed by dissipation in an unusual way; the algebraic scaling with the relevant parameters acquires fractional...
'Weak measurements'—involving a weak unitary interaction between a quantum system and a meter followed by a projective measurement—are investigated when the system has a non-Hermitian Hamiltonian. We show in particular how the standard definition of the 'weak value' of an observable must be modi...
1. On the other hand, the distinct asymmetries present in the profiles of the higher- and lower-branch modes, particularly when comparing |S21| and |S12| are attributed to the interaction between coherent and dissipative coupling, breaking time-reversal symmetry and thus leading to non-reciprocal...