Singular potentials and limit cycles

SR Beane, PF Bedaque, L Childress, A Kryjevski… - Physical Review A, 2001 - APS
We show that a central 1/rn singular potential (with n>~ 2) is renormalized by a one-
parameter square-well counterterm; low-energy observables are made independent of the …

Effects of applied external fields on the nonlinear optical rectification, second, and third-harmonic generation in an asymmetrical semi exponential quantum well

M Sayrac - Optical and Quantum Electronics, 2022 - Springer
The asymmetric potential profiles are focus of interest for researchers who study
semiconductor optoelectronic devices. Therefore, in this study, the effects of structure …

Anomalies in quantum mechanics: The potential

SA Coon, BR Holstein - American Journal of physics, 2002 - pubs.aip.org
An anomaly is said to occur when a symmetry that is valid classically becomes broken as a
result of quantization. Although most manifestations of this phenomenon are in the context of …

Example of a quantum anomaly in the physics of ultracold gases

M Olshanii, H Perrin, V Lorent - Physical review letters, 2010 - APS
In this Letter, we propose an experimental scheme for the observation of a quantum
anomaly—quantum-mechanical symmetry breaking—in a two-dimensional harmonically …

Quantum dots and cuboid quantum wells in fractal dimensions with position-dependent masses

RA El-Nabulsi, W Anukool - Applied Physics A, 2021 - Springer
In this study, we have constructed a generalized Schrödinger equation in fractal dimensions
characterized by an effective potential which is generated by a position-dependent mass …

Quantum anomaly in molecular physics

HE Camblong, LN Epele, H Fanchiotti, CAG Canal - Physical Review Letters, 2001 - APS
The interaction of an electron with a polar molecule is shown to be the simplest realization of
a quantum anomaly in a physical system. The existence of a critical dipole moment for …

Near-horizon conformal structure of black holes

D Birmingham, KS Gupta, S Sen - Physics Letters B, 2001 - Elsevier
The near-horizon properties of a black hole are studied within an algebraic framework, using
a scalar field as a simple probe to analyze the geometry. The operator H governing the near …

Singular mean-field states: a brief review of recent results

E Shamriz, Z Chen, BA Malomed, H Sakaguchi - Condensed Matter, 2020 - mdpi.com
This article provides a focused review of recent findings which demonstrate, in some cases
quite counter-intuitively, the existence of bound states with a singularity of the density pattern …

Regularization of the singular inverse square potential in quantum mechanics with a minimal length

D Bouaziz, M Bawin - Physical Review A—Atomic, Molecular, and Optical …, 2007 - APS
We study the problem of the attractive inverse square potential in quantum mechanics with a
generalized uncertainty relation. Using the momentum representation, we show that this …

Anomaly in conformal quantum mechanics: From molecular physics to black holes

HE Camblong, CR Ordonez - Physical Review D, 2003 - APS
A number of physical systems exhibit a particular form of asymptotic conformal invariance:
within a particular domain of distances, they are characterized by a long-range conformal …