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We give a detailed study of the symplectic geometry of a family of integrable systems obtained by coupling two angular momenta in a non trivial way. These systems depend on a parameter t $\in$ [0, 1] and exhibit different behaviors…

Mathematical Physics · Physics 2018-03-08 Yohann Le Floch , Álvaro Pelayo

The coupled angular momenta are a family of completely integrable systems that depend on three parameters and have a compact phase space. They correspond to the classical version of the coupling of two quantum angular momenta and they…

Dynamical Systems · Mathematics 2020-09-07 Jaume Alonso , Holger R. Dullin , Sonja Hohloch

In Dirac's canonical quantization theory on systems with second-class constraints, the commutators between the position, momentum and Hamiltonian form a set of algebraic relations that are fundamental in construction of both the quantum…

Quantum Physics · Physics 2015-05-30 Q. H. Liu , L. H. Tang , D. M. Xun

The notion of classical $p$-adic integrable system on a $p$-adic symplectic manifold was proposed by Voevodsky, Warren and the second author a decade ago in analogy with the real case. In the present paper we introduce and study, from the…

Symplectic Geometry · Mathematics 2025-06-10 Luis Crespo , Álvaro Pelayo

Intrinsic spin angular-momentum coupling of an electron has a relativistic quantum origin with the coupling arising from charged-orbits, which does not carry over to charge-neutral atoms. Here we propose a mechanism of spontaneous…

Quantum Gases · Physics 2018-08-31 Yongqiang Li , Jianmin Yuan , Andreas Hemmerich , Xiaopeng Li

A new approach is developed to integrate numerically the equations of motion for systems of interacting rigid polyatomic molecules. With the aid of a leapfrog framework, we directly involve principal angular velocities into the integration,…

Computational Physics · Physics 2007-05-23 Igor P. Omelyan

We study the dynamics of a quantum or classical particle in a two-dimensional rotating anisotropic harmonic potential. By a sequence of symplectic transformations for constant rotation velocity we find uncoupled normal generalized…

Quantum Physics · Physics 2019-10-23 I. Lizuain , A. Tobalina , A. Rodriguez-Prieto , J. G. Muga

We generalize the conformally invariant topological quantum mechanics of a particle propagating on a punctured plane by introducing a potential that breaks both the rotational and the conformal invariance down to a ${\bf Z}_2$…

High Energy Physics - Theory · Physics 2018-11-27 Laurent Baulieu , Francesco Toppan

The local symplectic theory of integrable systems is fundamental to understand their global theory, as well as the behavior near singularities of fundamental models from classical and quantum mechanics which are known to be integrable, such…

Symplectic Geometry · Mathematics 2026-02-05 Luis Crespo , Álvaro Pelayo

The p-adic description of Higgs mechanism in TGD framework provides excellent predictions for elementary particle and hadrons masses ([email protected] 9410058-62). The gauge group of TGD is just the gauge group of the standard model so…

High Energy Physics - Theory · Physics 2008-02-03 Matti Pitkänen

The classical Arnold-Liouville theorem describes the geometry of an integrable Hamiltonian system near a regular level set of the moment map. Our results describe it near a nondegenerate singular level set: a tubular neighborhood of a…

Dynamical Systems · Mathematics 2007-05-23 Nguyen Tien Zung

In this paper we consider a model based on interacting $p-$forms and explore some cosmological applications. Restricting to gauge invariant actions, we build a general Lagrangian allowing for arbitrary interactions between the $p-$forms…

Cosmology and Nongalactic Astrophysics · Physics 2020-01-15 Juan P. Beltrán Almeida , Alejandro Guarnizo , César A. Valenzuela-Toledo

We try to increase the fundamental symmetries of the anyonic particle with the help of the symplectic formalism of constrained systems and gauging the model. The main idea of this approach is based on the embedding of the model in an…

High Energy Physics - Theory · Physics 2015-07-29 Salman Abarghouei Nejad , Mehdi Dehghani , Majid Monemzadeh

The relativistic angular momentum is introduced as an extension of the non-relativistic analysis of allowed states in the phase space for a quantum particle. The paper shows the conceptual basis of the approach. An interesting feature of…

Quantum Physics · Physics 2007-05-23 Sebastiano Tosto

Coupled instantons are introduced by generalizing the double well potential to multiple mutually coupled wells. Physically this corresponds to the simultaneous tunneling of multiple degrees of freedom. A system with four equal minima is…

Quantum Physics · Physics 2026-03-03 Pervez Hoodbhoy , M. Haashir Ismail , M. Mufassir

In this work we obtain all the allowed values of the angular momentum and parity for two massless non-Abelian fields. In particular, we show that, unlike the two photons system, two gluons can be in a state with $J^P=1^\pm$, $(2k)^-$, and…

High Energy Physics - Phenomenology · Physics 2018-02-05 V. Pleitez

A new approach has been used to evaluate the momentum and angular momentum of the isotropic and homogeneous cosmological models. It is shown that the results obtained for momentum exactly coincide with those already available in the…

General Relativity and Quantum Cosmology · Physics 2007-05-23 M. Sharif

We study the non-uniqueness problem of the gauge-invariant angular momentum separation for the case of QED, which stems from the recent controversy concerning the proper definitions of the orbital angular momentum and spin operator of the…

High Energy Physics - Phenomenology · Physics 2017-04-11 Weimin Sun

The standard {\em system-plus-reservoir} approach used in the study of dissipative systems can be meaningfully generalized to a dissipative coupling involving the momentum, instead of the coordinate: the corresponding equation of motion…

Statistical Mechanics · Physics 2009-11-07 Alessandro Cuccoli , Andrea Fubini , Valerio Tognetti , Ruggero Vaia

We investigate the dynamics of angular momentum states for a single ultracold atom trapped in two dimensional systems of sided coupled ring potentials. The symmetries of the system show that tunneling amplitudes between different ring…

Quantum Gases · Physics 2016-03-23 J. Polo , J. Mompart , V. Ahufinger
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