Bootstrapping PT symmetric Hamiltonians
- URL: http://arxiv.org/abs/2202.05351v1
- Date: Thu, 10 Feb 2022 22:13:46 GMT
- Title: Bootstrapping PT symmetric Hamiltonians
- Authors: Sakil Khan, Yuv Agarwal, Devjyoti Tripathy, Sachin Jain
- Abstract summary: bootstrapping in Quantum Mechanics uses positivity condition to derive Eigenspectum.
We define positivity condition for special class of non-hermitian hamiltonian, the PT symmetric Hamiltonian.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Bootstrapping in Quantum Mechanics uses positivity condition to derive the
Eigenspectum. For non-hermitian systems usual positivity condition does not
work. In this paper we define positivity condition for special class of
non-hermitian hamiltonian, the PT symmetric Hamiltonian. We illustrate this
modified positivity condition with several examples and obtain eigenspectrum.
Related papers
- Real Spectra in PT Symmetry Hamiltonians using Tridiagonal Representation Approach [0.0]
We consider the solution of PT symmetry Hamiltonians using the technique of tridiagonal representation approach.<n>It is well know that PT symmetry condition of a Hamiltonian ensure that its spectra are real and positive even if the Hamiltonian is non Hermitian.
arXiv Detail & Related papers (2025-05-20T08:40:14Z) - Full-spectrum pairwise coalescence of eigenstates in a class of non-Hermitian Hamiltonians [0.0]
We consider non-Hermitian tight-binding one-dimensional Hamiltonians.
We show that imposing a certain symmetry causes all eigenvalues to pair up and the corresponding eigenstates to coalesce in pairs.
arXiv Detail & Related papers (2024-11-09T23:00:24Z) - Integral quantization based on the Heisenberg-Weyl group [39.58317527488534]
We develop a framework of integral quantization applied to the motion of spinless particles in the four-dimensional Minkowski spacetime.
The proposed scheme is based on coherent states generated by the action of the Heisenberg-Weyl group.
A direct application of our model, including a computation of transition amplitudes between states characterized by fixed positions and momenta, is postponed to a forthcoming article.
arXiv Detail & Related papers (2024-10-31T14:36:38Z) - Bootstrapping non-Hermitian Quantum System [0.0]
Recently, the Bootstrap" technique was applied in Quantum Mechanics to solve the eigenspectra of Hermitian Hamiltonians.
In this work, we establish bootstrap conditions for the non-Hermitian system and generate eigenspectra for a generic complex bootstrap potential.
arXiv Detail & Related papers (2024-09-10T18:00:12Z) - Quantifying non-Hermiticity using single- and many-particle quantum properties [14.37149160708975]
The non-Hermitian paradigm of quantum systems displays salient features drastically different from Hermitian counterparts.
We propose a formalism that quantifies the (dis-)similarity of these right and left ensembles, for single- as well as many-particle quantum properties.
Our findings can be instrumental in unveiling new exotic quantum phases of non-Hermitian quantum many-body systems.
arXiv Detail & Related papers (2024-06-19T13:04:47Z) - Antiparticles in non-relativistic quantum mechanics [55.2480439325792]
Non-relativistic quantum mechanics was originally formulated to describe particles.
We show how the concept of antiparticles can and should be introduced in the non-relativistic case without appealing to quantum field theory.
arXiv Detail & Related papers (2024-04-02T09:16:18Z) - Symmetry-restricted quantum circuits are still well-behaved [45.89137831674385]
We show that quantum circuits restricted by a symmetry inherit the properties of the whole special unitary group $SU(2n)$.
It extends prior work on symmetric states to the operators and shows that the operator space follows the same structure as the state space.
arXiv Detail & Related papers (2024-02-26T06:23:39Z) - A new symmetry theory for non-Hermitian Hamiltonians [0.0]
The eta pseudo PT symmetry theory, denoted by the symbol eta, explores the conditions under which non-Hermitian Hamiltonians can possess real spectra.
arXiv Detail & Related papers (2023-08-25T18:31:45Z) - Psedo-hermitian Hamiltonians at finite temperature [0.0]
We extend the Double Green Function Formalism to include pseudo-hermitian Hamiltonians.
We study the PT-symmetry Swanson Hamiltonian at finite temperature.
arXiv Detail & Related papers (2022-12-26T14:23:10Z) - A non-trivial PT-symmetric continuum Hamiltonian and its Eigenstates and
Eigenvalues [1.2891210250935146]
A non-trivial system governed by a continuum PT-symmetric Hamiltonian is discussed.
We find its eigenfunctions and the path in the complex plane along which these functions form an orthonormal set.
arXiv Detail & Related papers (2022-06-26T15:22:39Z) - Quantum simulation of a general anti-PT-symmetric Hamiltonian with a
trapped ion qubit [8.540612560553887]
We implement an anti-PT -symmetric Hamiltonian of a single qubit in a single trapped ion by a designed microwave and optical control-pulse sequence.
Our work allows quantum simulation of genuine open-system feature of an anti-PT-symmetric system.
arXiv Detail & Related papers (2022-03-03T02:18:39Z) - Information retrieval and eigenstates coalescence in a non-Hermitian
quantum system with anti-$\mathcal{PT}$ symmetry [15.273168396747495]
Non-Hermitian systems with parity-time reversal ($mathcalPT$) or anti-$mathcalPT$ symmetry have attracted a wide range of interest owing to their unique characteristics and counterintuitive phenomena.
We implement a Floquet Hamiltonian of a single qubit with anti-$mathcalPT$ symmetry by periodically driving a dissipative quantum system of a single trapped ion.
arXiv Detail & Related papers (2021-07-27T07:11:32Z) - Non-equilibrium stationary states of quantum non-Hermitian lattice
models [68.8204255655161]
We show how generic non-Hermitian tight-binding lattice models can be realized in an unconditional, quantum-mechanically consistent manner.
We focus on the quantum steady states of such models for both fermionic and bosonic systems.
arXiv Detail & Related papers (2021-03-02T18:56:44Z)
This list is automatically generated from the titles and abstracts of the papers in this site.
This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.