Electron capture and scaling anomaly in polar molecules

PR Giri, KS Gupta, S Meljanac, A Samsarov - Physics Letters A, 2008 - Elsevier
We present a new analysis of the electron capture mechanism in polar molecules, based on
von Neumann's theory of self-adjoint extensions. Our analysis suggests that it is theoretically …

A non-Hermitian oscillator Hamiltonian and su (1, 1): a way towards generalizations

C Quesne - Journal of Physics A: Mathematical and Theoretical, 2007 - iopscience.iop.org
The family of metric operators, constructed by Musumbu et al (2007 J. Phys. A: Math. Theor.
40 F75), for a harmonic oscillator Hamiltonian augmented by a non-Hermitian-symmetric …

From worldline to quantum superconformal mechanics with and without oscillatorial terms: and models

IE Cunha, NL Holanda, F Toppan - Physical Review D, 2017 - APS
In this paper, we quantize superconformal σ models defined by worldline supermultiplets.
Two types of superconformal mechanics, with and without a De Alfaro Fubini Furlan (DFF) …

Bound states in gapped graphene with impurities: Effective low-energy description of short-range interactions

KS Gupta, S Sen - Physical Review B—Condensed Matter and Materials …, 2008 - APS
We obtain a bound-state spectrum of low-energy excitations near the Fermi points of gapped
graphene in the presence of a charge impurity. The effects of possible short-range …

Remark on quantum mechanics with N= 2 Schrödinger supersymmetry

A Gala**sky, I Masterov - Physics Letters B, 2009 - Elsevier
A unitary transformation which relates a many-body quantum mechanics with N= 2
Schrödinger supersymmetry to a set of decoupled superparticles is proposed. The …

Dipole binding in a cosmic string background due to quantum anomalies

PR Giri - Physical Review A—Atomic, Molecular, and Optical …, 2007 - APS
We propose quantum dynamics for the dipole moving in cosmic string background and show
that the classical scale symmetry of a particle moving in cosmic string background is still …

Atom capture by nanotube and scaling anomaly

PR Giri - International Journal of Theoretical Physics, 2008 - Springer
The existence of bound state of the polarizable neutral atom in the inverse square potential
created by the electric field of a single walled charged carbon nanotube (SWNT) is shown to …

Hierarchy of QM SUSYs on a bounded domain

T Nagasawa, S Ohya, K Sakamoto… - Journal of Physics A …, 2009 - iopscience.iop.org
We systematically formulate a hierarchy of isospectral Hamiltonians in one-dimensional
supersymmetric quantum mechanics on an interval and on a circle, in which two successive …

Orthogonality catastrophe and fractional exclusion statistics

F Ares, KS Gupta, AR de Queiroz - Physical Review E, 2018 - APS
We show that the N-particle Sutherland model with inverse-square and harmonic
interactions exhibits orthogonality catastrophe. For a fixed value of the harmonic coupling …

Solvable few-body quantum problems

A Bachkhaznadji, M Lassaut - Few-Body Systems, 2015 - Springer
This work is devoted to the study of some exactly solvable quantum problems of four, five
and six bodies moving on the line. We solve completely the corresponding stationary …