In Hermitian models, several dynamical decoupling schemes have been suggested, in which the discrete-continuum interaction can be substantially reduced and even suppressed. In this work,we consider a discrete state interacting with a continuum via a time-dependent non-Hermitian coupling with finite (...
Non-Hermitian version of Dirac's interaction pictureComplete set of time-evolution equationsApplication in relativistic quantum mechanicsKlein-Gordon example with space-time-dependent massIn quantum mechanics the unitary evolution is most often described in a pre-selected Hilbert space ${\\cal H}^{(...
Firstly, we point out that the origin of the gap is the interplay between the kinetic term Hkin and the non-Hermitian interaction Hint (i.e., the mixing between Landau bands). Applying the perturbation theory, we obtain the following Hamiltonian acting on the space spanned by the states in...
Wolfram Community forum discussion about Renormalization group approach for modified vdP oscillator with PT non-Hermitian interaction. Stay on top of important topics and build connections by joining Wolfram Community groups relevant to your interests.
Interaction-induced decoherence in non-Hermitian quantum walks of ultracold Bosonscatalysishydrogenmaterials sciencesemiconductorssolar energyWe study the influence of particle interaction on a quantum walk on a bipartite one-dimensional lattice with decay from every second site. The corresponding non-...
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...
Crucially, the last two quantities, referred to as potential energies, only represent the conservative interaction, but not the entire non-Hermitian interactions. The latter cannot be expressed as the gradient of a potential. According to the ET, all four quantities should equal kBT/2. However, ...
interaction picture in a non-Hermitian realization is discussed in detail andconsidered for its practical use in many-body quantum physics. The resulting non-Hermitianinteraction-picture (NHIP) description of dynamics, in which both the wave functions andoperators belonging to physical observables ...
题目:Quantum Non-Hermitian Phenomena with Open Baths | 北京大学量子材料科学中心 时间:2024-04-17 15:00 报告人:胡颖 山西大学 主办方:北京大学量子材料科学中心 直播链接:蔻享学术摘要:While enchanting non-Hermitian properties unattainable in Hermitian systems are widely revealed, genuine quantum non-Hermitia...
An example is the non-Hermitian skin effect (NHSE)1,2,3,4,5,6,7, which involves the concentration of eigenstates at the boundary. However, despite the potential insights that can be gained from high-dimensional non-Hermitian quantum systems in areas such as curved space8,9,10, high-...