Exceptional points are studied for non-hermitian Hamilton operators given by a hierarchy of spin-operators
We discuss the construction of real matrix representations of PT-symmetric operators. We show the li...
Exceptional points (EPs) determine the dynamics of open quantum systems and cause also PT symmetry b...
In the framework of non-Hermitian quantum physics, the relation between exceptional points,dynamical...
Exceptional points are studied for non-hermitian Hamilton operators given by a hierarchy of spin-ope...
We calculate accurate critical parameters for a class of non-hermitian Hamiltonians by means of the ...
AbstractWe establish a minimax characterization for extreme real eigenvalues of a general hermitian ...
AbstractThis paper discusses several measures of nonnormality of matrices, i.e., functions v: Cn, n ...
We notice that, when a quantum system involves exceptional points, i.e. the special values of parame...
The eigenvalues of a non-Hermitian Hamilton operator are complex and provide not only the energies b...
We discuss the construction of real matrix representations of PT-symmetric operators. We show the li...
The eigenvalues of a non-Hermitian Hamilton operator are complex and provide not only the energies b...
AbstractFor the eigenvalues λi of an n × n matrix A the inequality ∑i|λi|2(‖A‖4 − 12‖D‖2)12 is prove...
In this work, taking the most general non-Hermitian Hamiltonian without parity-time $(\mathcal{PT})$...
Non-Hermitian quantum systems can exhibit spectral degeneracies known as exceptional points, where t...
We discuss the construction of real matrix representations of PT-symmetric operators. We show the li...
We discuss the construction of real matrix representations of PT-symmetric operators. We show the li...
Exceptional points (EPs) determine the dynamics of open quantum systems and cause also PT symmetry b...
In the framework of non-Hermitian quantum physics, the relation between exceptional points,dynamical...
Exceptional points are studied for non-hermitian Hamilton operators given by a hierarchy of spin-ope...
We calculate accurate critical parameters for a class of non-hermitian Hamiltonians by means of the ...
AbstractWe establish a minimax characterization for extreme real eigenvalues of a general hermitian ...
AbstractThis paper discusses several measures of nonnormality of matrices, i.e., functions v: Cn, n ...
We notice that, when a quantum system involves exceptional points, i.e. the special values of parame...
The eigenvalues of a non-Hermitian Hamilton operator are complex and provide not only the energies b...
We discuss the construction of real matrix representations of PT-symmetric operators. We show the li...
The eigenvalues of a non-Hermitian Hamilton operator are complex and provide not only the energies b...
AbstractFor the eigenvalues λi of an n × n matrix A the inequality ∑i|λi|2(‖A‖4 − 12‖D‖2)12 is prove...
In this work, taking the most general non-Hermitian Hamiltonian without parity-time $(\mathcal{PT})$...
Non-Hermitian quantum systems can exhibit spectral degeneracies known as exceptional points, where t...
We discuss the construction of real matrix representations of PT-symmetric operators. We show the li...
We discuss the construction of real matrix representations of PT-symmetric operators. We show the li...
Exceptional points (EPs) determine the dynamics of open quantum systems and cause also PT symmetry b...
In the framework of non-Hermitian quantum physics, the relation between exceptional points,dynamical...