Add to ORKGIt is believed that unbroken PT symmetry is sufficient to guarantee that the spectrum of a non-Hermitian Hamiltonian is real. We prove that this is not true. We study a Hamiltonian with complex spectrum for which PT symmetry is not spontaneously broken
The impact of an anti-unitary symmetry on the spectrum of non-Hermitian operators is studied. Wigner...
Non-Hermitian models with real eigenenergies are highly desirable for their stability. Yet, most of ...
In many PT symmetric models with real spectra, apparently, energy levels "merge and disappear" at a ...
A condition to have a real spectrum for a non-Hermitian Hamiltonian is given. As special cases, it i...
The Hermiticity from conventional quantum mechanics guarantees that the energy spectrum is real. How...
Li and Miao [Phys. Rev. A 85, 042110 (2012)] proposed a non-Hermitian Hamiltonian that is neither He...
A fundamental problem in the theory of PT-invariant quantum systems is to determine whether a given ...
A fundamental problem in the theory of PT-invariant quantum systems is to determine whether a given ...
We construct a new class of non-Hermitian Hamiltonians with real spectra. The Hamiltonians possess o...
The impact of an anti-unitary symmetry on the spectrum of non-hermitean operators is studied. Wigner...
PT-symmetric quantum mechanics began with a study of the Hamiltonian H=p2+x2(ix)ɛ. When ɛ≥0, the eig...
We give a necessary and sufficient condition for the reality of the spectrum of a non-Hermitian Hami...
Treballs Finals de Grau de Física, Facultat de Física, Universitat de Barcelona, Curs: 2018, Tutor: ...
It is shown that if a Hamiltonian $H$ is Hermitian, then there always exists an operator ${\cal P}$ ...
We review the proof of a conjecture concerning the reality of the spectra of certain PT-symmetric qu...
The impact of an anti-unitary symmetry on the spectrum of non-Hermitian operators is studied. Wigner...
Non-Hermitian models with real eigenenergies are highly desirable for their stability. Yet, most of ...
In many PT symmetric models with real spectra, apparently, energy levels "merge and disappear" at a ...
A condition to have a real spectrum for a non-Hermitian Hamiltonian is given. As special cases, it i...
The Hermiticity from conventional quantum mechanics guarantees that the energy spectrum is real. How...
Li and Miao [Phys. Rev. A 85, 042110 (2012)] proposed a non-Hermitian Hamiltonian that is neither He...
A fundamental problem in the theory of PT-invariant quantum systems is to determine whether a given ...
A fundamental problem in the theory of PT-invariant quantum systems is to determine whether a given ...
We construct a new class of non-Hermitian Hamiltonians with real spectra. The Hamiltonians possess o...
The impact of an anti-unitary symmetry on the spectrum of non-hermitean operators is studied. Wigner...
PT-symmetric quantum mechanics began with a study of the Hamiltonian H=p2+x2(ix)ɛ. When ɛ≥0, the eig...
We give a necessary and sufficient condition for the reality of the spectrum of a non-Hermitian Hami...
Treballs Finals de Grau de Física, Facultat de Física, Universitat de Barcelona, Curs: 2018, Tutor: ...
It is shown that if a Hamiltonian $H$ is Hermitian, then there always exists an operator ${\cal P}$ ...
We review the proof of a conjecture concerning the reality of the spectra of certain PT-symmetric qu...
The impact of an anti-unitary symmetry on the spectrum of non-Hermitian operators is studied. Wigner...
Non-Hermitian models with real eigenenergies are highly desirable for their stability. Yet, most of ...
In many PT symmetric models with real spectra, apparently, energy levels "merge and disappear" at a ...