Hermite-Gaussian model for quantum states

11/03/2018
by   Marcelo Losada, et al.
0

In order to characterize quantum states within the context of information geometry, we propose a generalization of the Gaussian model, which we called the Hermite-Gaussian model. We obtain the Fisher-Rao metric and the scalar curvature for this model, and we show its relation with the one-dimensional quantum harmonic oscillator. Moreover, using this model we characterize some failies of states of the quantum harmonic oscillator. We find that for the eigenstates of the Hamiltonian, mixtures of eigenstates and even or odd superpositions of eienstates the associated Fisher-Rao metrics are diagonal.

READ FULL TEXT

page 1

page 2

page 3

page 4

research
06/09/2022

Provably efficient variational generative modeling of quantum many-body systems via quantum-probabilistic information geometry

The dual tasks of quantum Hamiltonian learning and quantum Gibbs samplin...
research
07/25/2023

Fermionic Hamiltonians without trivial low-energy states

We construct local fermionic Hamiltonians with no low-energy trivial sta...
research
03/06/2018

Gaussian optimizers for entropic inequalities in quantum information

We survey the state of the art for the proof of the quantum Gaussian opt...
research
02/22/2020

Quantum Cognitive Triad. Semantic geometry of context representation

The paper describes an algorithm for cognitive representation of triples...
research
01/29/2023

Reconstruction of Gaussian Quantum States from Ideal Position Measurements: Beyond Pauli's Problem, I

We show that the covariance matrix of a quantum state can be reconstruct...
research
11/27/2017

Distances between States and between Predicates

This paper gives a systematic account of various metrics on probability ...
research
01/30/2020

Kelly Betting with Quantum Payoff: a continuous variable approach

The main purpose of this study is to introduce a semi-classical model de...

Please sign up or login with your details

Forgot password? Click here to reset