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We discuss certain generalization of the Hilbert space of states in noncommutaive quantum mechanics that, as we show, introduces magnetic monopoles into the theory. Such generalization arises very naturally in the considered model, but can…

综合物理 · 物理学 2017-03-08 Samuel Kováčik , Peter Prešnajder

Starting from a weak gauge principle we give a new and critical revision of the argument leading to charge quantization on arbitrary spacetimes. The main differences of our approach with respect to previous works appear on spacetimes with…

高能物理 - 理论 · 物理学 2007-05-23 E. Minguzzi , C. Tejero Prieto , A. Lopez Almorox

In their seminal paper Aharonov and Bohm (1959) claimed that electromagnetic fields can act at a distance on charged particles even if they are identically zero in the region of space where the particles propagate. They proposed two…

数学物理 · 物理学 2011-07-15 Ricardo Weder

It is proved that the phase shift of a polarized neutron interacting with a spatially uniform time-dependent magnetic field, demonstrates the same physical principles as the magnetic Aharonov-Bohm effect. The crucial role of inert objects…

量子物理 · 物理学 2009-10-31 E. Comay

Magnetic monopoles in Yang-Mills-Higgs theory with a non-abelian unbroken gauge group are classified by holomorphic charges in addition to the topological charges familiar from the abelian case. As a result the moduli spaces of monopoles of…

高能物理 - 理论 · 物理学 2009-10-30 F. A. Bais , B. J. Schroers

We derive stronger bounds on the magnetic monopole charge of the proton, and hence on non-associative quantum mechanics from measurements of the magnetic fields of the Earth, the Moon and Mars. Limits are several orders of magnitude…

综合物理 · 物理学 2019-05-17 Andrea Addazi , Antonino Marciano

The long-sought "magnetic monopole" appears to be -- not a fermion distinct from the electrons and quarks -- but a charge carried by the known electrons and the quarks themselves. Similarly to the "Z" charge of electroweak theory, however,…

高能物理 - 唯象学 · 物理学 2007-05-23 Jay R. Yablon

In a minimal extension of the Standard Model, in which new neutral fermions have been introduced, we show that the requirement of vanishing anomalies fixes the hypercharges of all fermions uniquely. This naturally leads to electric charge…

高能物理 - 唯象学 · 物理学 2011-07-19 M. Nowakowski , A. Pilaftsis

Preceding Comment challenged my claim that potentials might be just auxiliary mathematical tools and that they are not necessary for explaining physical phenomena. The Comment did not confront my explanation without potentials of the…

量子物理 · 物理学 2015-09-30 Lev Vaidman

Hamilton-Jacobi equation which governs classical mechanics and electrodynamics explicitly depends on the electromagnetic potentials (A,{\phi}), similar to Schroedinger equation. We derived the Aharonov-Bohm effect from Hamilton-Jacobi…

量子物理 · 物理学 2013-04-11 Alexander Ershkovich

In the present work we argue that the usual assumption that magnetic currents possess the vector structure characteristic of electric currents may be the source of several difficulties in the theory of magnetic monopoles. We propose an {\it…

高能物理 - 理论 · 物理学 2007-05-23 Cardoso de Melo , M. C. Nemes , Saulo C. S. Silva

In theories with Chern-Simons terms or modified Bianchi identities, it is useful to define three notions of either electric or magnetic charge associated with a given gauge field. A language for discussing these charges is introduced and…

高能物理 - 理论 · 物理学 2007-05-23 Donald Marolf

In most introductory courses on electrodynamics, one is taught the electric charge is quantised but no theoretical explanation related to this law of nature is offered. Such an explanation is postponed to graduate courses on…

物理学史与哲学 · 物理学 2019-04-09 Ricardo Heras

Dirac's quantization of magnetic monopole strength is derived without reference to a (singular, patched) vector potential.

高能物理 - 理论 · 物理学 2017-08-23 R. Jackiw

In gauge theories like the standard model, the electric charges of the fermions can be heavily constrained from the classical structure of the theory and from the cancellation of anomalies. We argue that the anomaly conditions are not quite…

高能物理 - 唯象学 · 物理学 2009-10-28 R. Foot

There is a consensus today that the the main lesson of the Aharonov-Bohm effect is that a picture of electromagnetism based on the local action of the field strengths is not possible in quantum mechanics. Contrary to this statement it is…

量子物理 · 物理学 2015-05-30 Lev Vaidman

In the experiments, the quantity measurd is the product of the charge and the magnetic field from which fractional charge is deduced. There is no objection to measuring the fractional charge as long as it is remembered that the product of…

介观与纳米尺度物理 · 物理学 2007-05-23 Keshav N. Shrivastava

A magnetic monopole is placed at the centre of a 3-ball whose surface, S, is tiled by the symmetry group, G, of a regular solid. The quantum mechanics on the two-dimensional quotient, S/G, is developed and the monopole charge is found to be…

高能物理 - 理论 · 物理学 2009-10-31 J. S. Dowker

This paper presents a \emph{non-instant field model} for electrodynamics that permits a causal explanation of the \emph{Aharonov-Bohm effect} and a \emph{covariant quantization} of the respective Maxwell equations via the…

数学物理 · 物理学 2011-11-28 Richard Kowar

Quantization of superflow-circulation and of magnetic-flux are considered for systems, such as superfluid $^3$He-A and unconventional superconductors, having nonscalar order parameters. The circulation is shown to be the anholonomy in the…

凝聚态物理 · 物理学 2009-10-28 Yuli Lyanda-Geller , Paul M. Goldbart , Daniel Loss