Results 1 to 10 of about 2,512 (124)

Silicon micromachined electromagnetic microactuators for rigid disk drives [PDF]

open access: yesIEEE Transactions on Magnetics, 1995
It is projected that by the year 2001, the disk drive industry will be shipping products with track density on the order of 25,000 tracks-per-inch, which would require a servo bandwidth of at least 3 kHz. This paper presents initial fabrication results of an industry and government supported research project at Caltech and UCLA to develop piggyback ...
Tang, Weilong   +5 more
openaire   +2 more sources

Rigidity of fragile matter: A gauge theoretic perspective [PDF]

open access: yesEPJ Web of Conferences
The process of jamming creates fragile matter, whose rheology is distinct from solids or liquids. The solidity of fragile matter emerges from the applied stress itself.
Chakraborty Bulbul
doaj   +1 more source

Dual gauge field theory of quantum liquid crystals in two dimensions [PDF]

open access: yes, 2017
We present a self-contained review of the theory of dislocation-mediated quantum melting at zero temperature in two spatial dimensions. The theory describes the liquid-crystalline phases with spatial symmetries in between a quantum crystalline solid and ...
Beekman, Aron J.   +7 more
core   +3 more sources

Rigid Sphere Model of Elementary Particles and the Electromagnetic Field [PDF]

open access: yesProgress of Theoretical Physics, 1965
As is well known, the isospin has been introduced in an intimate relation with the electromagnetic :field. An attempt is made to derive this relation based upon the rigid sphere model of elementary particles, starting from the :five dimensional theory proposed by Kaluza and Klein.
Osamu Hara, Tetsuo Goto
openaire   +1 more source

Deconfining the rotational Goldstone mode: the superconducting nematic liquid crystal in 2+1D [PDF]

open access: yes, 2013
The Goldstone theorem states that there should be a massless mode for each spontaneously broken symmetry generator. There is no such rotational mode in crystals, however superconducting quantum nematics should carry rotational Goldstone modes.
Beekman, Aron J.   +3 more
core   +3 more sources

Time-Dependent Scalar Fields in Modified Gravities in a Stationary Spacetime [PDF]

open access: yes, 2016
Most no-hair theorems involve the assumption that the scalar field is independent of time. Recently in [Phys. Rev. D90 (2014) 041501(R)] the existence of time-dependent scalar hair outside a stationary black hole in general relativity was ruled out.
Gu, Bao-Min   +3 more
core   +2 more sources

A real Lorentz-FitzGerald contraction [PDF]

open access: yes, 2008
Many condensed matter systems are such that their collective excitations at low energies can be described by fields satisfying equations of motion formally indistinguishable from those of relativistic field theory.
A. Einstein   +14 more
core   +2 more sources

Electrodynamics of Abrikosov vortices: the Field Theoretical Formulation [PDF]

open access: yes, 2011
Electrodynamic phenomena related to vortices in superconductors have been studied since their prediction by Abrikosov, and seem to hold no fundamental mysteries. However, most of the effects are treated separately, with no guiding principle.
A. A. Abrikosov   +17 more
core   +1 more source

Introduction to the Neoclassical Interpretation: Quantum Steampunk [PDF]

open access: yes, 2020
In a previous paper we outlined a series of historical touchpoints between classical aether theories and modern theoretical physics which showed a shared conceptual lineage for the modern tools and methods of the most common interpretations and fluid ...
Meucci, Shiva
core   +1 more source

Bekenstein bounds and inequalities between size, charge, angular momentum and energy for bodies

open access: yes, 2015
Bekenstein bounds for the entropy of a body imply an universal inequality between size, energy, angular momentum and charge. We prove this inequality in Electromagnetism.
Dain, Sergio
core   +1 more source

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