RECORD
Lie Groups and Propagators Exemplified
Quantum Physics · Submitted 29 Dec 2021
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim Concise methods are used to compute the propagator for a non-relativistic particle subject to a potential with x^2 and 1/x^2 terms.
The compiled record
The paper's own sentences, arranged. Each label is drawn from a closed vocabulary; the number beside it is the probability the classifier gave that label. Numbers in the tables are the authors', checked by code. No sentence in this record was written by a model.
Open the compiled record
The abstract, sentence by sentence
Concise methods are used to compute the propagator for a non-relativistic particle subject to a potential with x^2 and 1/x^2 terms.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | Concise methods are used to compute the propagator for a non-relativistic particle subject to a potential with x^2 and 1/x^2 terms. | contribution 0.66 | 0.88 | 0.40 | asserted 1.00 |
What was examined, and what was not
- arXiv listing abstract v1
- full text
- figures and tables
- references and citing sentences
- relations to other papers
- P abstract
- S sections
- T body sentences
- C citations
- R cross-paper relations
The paper
Original abstract
Concise methods are used to compute the propagator for a non-relativistic particle subject to a potential with x^2 and 1/x^2 terms.
Human review
How the literature uses it
2 arXiv papers cite this in 6 sentences
Papers citing it · 4 sentences without a confident label
Uses its method or tool 1 paper
-
In order to simulate the quantum Harmonic oscillator Hamiltonian $H=p^2/2m + mω^2x^2/2$ for the case $m=1/2, ω=2$, we use a disentangling formula that expresses the Hamiltonian as a product of three terms, each diagonal in either the standard or the Fourier basis [ref] : exp( -it (p^2 + x^2) ) = exp( - i x^2 tan(t)/2 ) exp( - i p^2 sin(2t) /2 ) exp( - i x^2 tan(t)/2 ) qho The disentangling formula directly yields an extremely efficient quantum circuit for simulating the Hamiltonian $H$.
Efficient quantum loading of probability distributions through Feynman propagators · Example: the normal distribution and the harmonic oscillator · 1.00
Cites it as background 1 paper
-
The oscillator versus free particle correspondence has been studied subsequently by many people, see [ref] for a (very) incomplete list.
Gravitational Waves and Conformal Time Transformations · Introduction: gravitational waves and the Niederer transformation · 1.00
Discussion
Know something about this paper? Leave a comment, or highlight any passage above to comment on it.