Partial symplectic quantum tomography schemes. Observables, evolution equations, and stationary states equations
- URL: http://arxiv.org/abs/2406.06554v1
- Date: Thu, 30 May 2024 20:25:09 GMT
- Title: Partial symplectic quantum tomography schemes. Observables, evolution equations, and stationary states equations
- Authors: Ya. A. Korennoy, V. I. Man'ko,
- Abstract summary: Partial symplectic conditional and joint probability representations of quantum mechanics are considered.
The correspondence rules for most interesting physical operators are found and the expressions of the dual symbols of operators are derived.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Partial symplectic conditional and joint probability representations of quantum mechanics are considered. The correspondence rules for most interesting physical operators are found and the expressions of the dual symbols of operators are derived. Calculations were made by use of general formalism of quantizers and dequantizers determining the star product quantization scheme in these representations. Taking the Gaussian functions as the distributions of the tomographic parameters the examples of joint probability representations were considered. Evolution equations and stationary states equations for partial symplectic conditional and joint probability distributions are obtained.
Related papers
- Physical consequences of Lindbladian invariance transformations [44.99833362998488]
We show that symmetry transformations can be exploited, on their own, to optimize practical physical tasks.
In particular, we show how they can be used to change the measurable values of physical quantities regarding the exchange of energy and/or information with the environment.
arXiv Detail & Related papers (2024-07-02T18:22:11Z) - Exact finite-time correlation functions for multi-terminal setups: Connecting theoretical frameworks for quantum transport and thermodynamics [11.061707876645764]
Transport in open quantum systems can be explored through various theoretical frameworks, including the quantum master equation, scattering matrix, and Heisenberg equation of motion.
Existing literature treats these approaches independently, lacking a unified perspective.
Our work addresses this gap by clarifying the role and status of these approaches using a minimal single-level quantum dot model in a two-terminal setup.
arXiv Detail & Related papers (2023-12-22T21:09:18Z) - Quantum stochastic trajectories for particles and fields based on
positive P-representation [0.0]
We introduce a phase-space description based on the positive P representation for bosonic fields interacting with a system of quantum emitters.
The formalism is applicable to collective light-matter interactions and open quantum systems with decoherence.
A potential future application is the quantum mechanical description of collective spontaneous emission of an incoherently pumped ensemble of atoms.
arXiv Detail & Related papers (2023-06-30T08:38:47Z) - Fermionic anyons: entanglement and quantum computation from a resource-theoretic perspective [39.58317527488534]
We develop a framework to characterize the separability of a specific type of one-dimensional quasiparticle known as a fermionic anyon.
We map this notion of fermionic-anyon separability to the free resources of matchgate circuits.
We also identify how entanglement between two qubits encoded in a dual-rail manner, as standard for matchgate circuits, corresponds to the notion of entanglement between fermionic anyons.
arXiv Detail & Related papers (2023-06-01T15:25:19Z) - Dissipatons as generalized Brownian particles for open quantum systems: Dissipaton-embedded quantum master equation [16.87034694915828]
We revisit the dissipaton equation of motion theory and establish an equivalent dissipatons-embedded quantum master equation (DQME)
The DQME supplies a direct approach to investigate the statistical characteristics of dissipatons and thus the physically supporting hybrid bath modes.
Numerical demonstrations are carried out on the electron transfer model, exhibiting the transient statistical properties of the solvation coordinate.
arXiv Detail & Related papers (2023-03-19T14:14:46Z) - Dispersion chain of quantum mechanics equations [0.0]
The paper considers the construction of a new chain of equations of quantum mechanics of high kinematical values.
The proposed approach can be applied to consideration of classical and quantum systems with radiation.
arXiv Detail & Related papers (2022-09-28T12:58:19Z) - Symplectic tomographic probability distribution of crystallized
Schr\"odinger cat states [1.2891210250935143]
We study a superposition of generic Gaussian states associated to symmetries of a regular polygon of n sides.
We obtain the Wigner functions and tomographic probability distributions determining the density matrices of the states.
arXiv Detail & Related papers (2022-03-15T11:03:47Z) - Decimation technique for open quantum systems: a case study with
driven-dissipative bosonic chains [62.997667081978825]
Unavoidable coupling of quantum systems to external degrees of freedom leads to dissipative (non-unitary) dynamics.
We introduce a method to deal with these systems based on the calculation of (dissipative) lattice Green's function.
We illustrate the power of this method with several examples of driven-dissipative bosonic chains of increasing complexity.
arXiv Detail & Related papers (2022-02-15T19:00:09Z) - Quantum particle across Grushin singularity [77.34726150561087]
We study the phenomenon of transmission across the singularity that separates the two half-cylinders.
All the local realisations of the free (Laplace-Beltrami) quantum Hamiltonian are examined as non-equivalent protocols of transmission/reflection.
This allows to comprehend the distinguished status of the so-called bridging' transmission protocol previously identified in the literature.
arXiv Detail & Related papers (2020-11-27T12:53:23Z) - Coherent representation of fields and deformation quantization [0.0]
We explicitly consider the holomorphic representation for a scalar field within the deformation quantization program.
Notably, the symbol of a symmetric ordered operator in terms of holomorphic variables may be straightforwardly obtained by the quantum field analogue of the Husimi distribution.
arXiv Detail & Related papers (2020-05-28T22:41:26Z) - Coherent states of parametric oscillators in the probability
representation of quantum mechanics [0.0]
The possibility to describe quantum states by tomographic probability distributions (tomograms) is presented.
The integrals of motion linear in the position and momentum are used to explicitly obtain the tomogram evolution.
arXiv Detail & Related papers (2020-03-01T12:10:48Z)
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.