Chern-Simons term in a dual Josephson junction

Grigorio, L. S.; Guimaraes, M. S.; Rougemont, Romulo; Wotzasek, C.; Zarro, C. A. D.

doi:10.1103/physrevd.88.065009

Cited by 4 publications

(3 citation statements)

References 29 publications

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“…Thus, the condensation of topological defects constitutes a mass gap generation mechanism whose general signature is the so-called "rank jump phenomenon": a massless Abelian p-form describing the system in the phase with diluted defects gives place to a new effective massive (p + 1)-form describing the system in the condensed phase. Quevedo and Trugenberger refer to this as the "Julia-Toulouse mechanism" (JTM) and, more recently, some of us generalized the JTM in various aspects and applied it to many different physical systems [31][32][33][34][35][36][37][38][39][40][41].…”

Section: Jhep07(2015)070mentioning

confidence: 99%

Vanishing DC holographic conductivity from a magnetic monopole condensate

Rougemont

Noronha

Zarro

et al. 2015

J. High Energ. Phys.

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We show how to obtain a vanishing DC conductivity in 3-dimensional strongly coupled QFT's using a massive 2-form field in the bulk that satisfies a special kind of boundary condition. The real and imaginary parts of the AC conductivity are evaluated in this holographic setup and we show that the DC conductivity identically vanishes even for an arbitrarily small (though nonzero) value of the 2-form mass in the bulk. We identify the bulk action of the massive 2-form with an effective theory describing a phase in which magnetic monopoles have condensed in the bulk. Our results indicate that a condensate of magnetic monopoles in a 4-dimensional bulk leads to a vanishing DC holographic conductivity in 3-dimensional strongly coupled QFT's.

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Section: Jhep07(2015)070mentioning

confidence: 99%

Vanishing DC holographic conductivity from a magnetic monopole condensate

Rougemont

Noronha

Zarro

et al. 2015

J. High Energ. Phys.

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“…The JTM has been then applied to describe different aspects of several physical systems, see for instance Refs. [10,[13][14][15][16][17][18][19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Diagonal and Hall holographic conductivities dual to a bulk condensate of magnetic monopoles

Rougemont

2020

Eur. Phys. J. C

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By employing the holographic operator mixing technique to deal with coupled perturbations in the gauge/gravity duality, I numerically compute the real and imaginary parts of the diagonal and Hall AC conductivities in a strongly coupled quantum field theory dual to a bulk condensate of magnetic monopoles. The results obtained show that a conclusion previously derived in the literature, namely, the vanishing of holographic DC conductivities in 3-dimensional strongly coupled quantum field theories dual to a 4-dimensional bulk magnetic monopole condensate, also applies to the calculation of diagonal and Hall conductivities in the presence of a topological θ-term. Therefore, the condensation of magnetic monopoles in the bulk is suggested as a rather general and robust mechanism to generate dual strongly coupled quantum field theories with zero DC conductivities. The interplay between frequency, θ-angle and the characteristic mass scale of the monopole condensate on the results for the conductivities is also investigated.

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“…In this connection, it is probable that the CS term affects the properties of matter [8]. More detailed studies [9,10,11] have addressed the role of the CS term or axion term in superconductors.…”

Section: Introductionmentioning

confidence: 99%

The phase synchronization of an axion and a superconductor

Manjo,

Kobayashi,

Shiraishi

2014

Preprint

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The effects of the axion field have been widely studied in theoretical physics, particularly in particle physics. Considering the phase synchronization and the mean free path of the axion, the bulk of the phase coherent superconductor is regarded as the weak link region of the Josephson junction. It is expected that the axion mass influences the London penetration depth. There is a slight possibility of detecting this effect because the effect becomes more significant in superconductor with a low carrier density n s . The differences due to the choice of axion model and the axion mass are discussed.

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Chern-Simons term in a dual Josephson junction

Cited by 4 publications

References 29 publications

Vanishing DC holographic conductivity from a magnetic monopole condensate

Vanishing DC holographic conductivity from a magnetic monopole condensate

Diagonal and Hall holographic conductivities dual to a bulk condensate of magnetic monopoles

The phase synchronization of an axion and a superconductor

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