Within the Hamiltonian approach to Yang-Mills theory in Coulomb gauge the ghost and gluon propagators are determined from a variational solution of the Yang–Mills Schrödinger equation showing both gluon and heavy quark confinement. The continuum results are in good agreement with lattice data. The ghost form factor is identified as the dielectric function of the Yang–Mills vacuum and the Gribov...

We present the dispersion relations for quasiparticle excitations about the color-flavor locked ground state of QCD at high baryon density. In the presence of condensates which pair light and strange quarks there need not be an energy gap in the quasiparticle spectrum. This raises the possibility of gapless color superconductivity, with a Meissner effect but no minimum excitation energy. Analys...

We show that in 2+1 dimensional Quantum Electrodynamics an external magnetic field applied to a finite density of massless fermions is screened, due to a 2 + 1dimensional realization of the underlying 2-dimensional axial anomaly of the space components of the electric current. This is shown to imply screening of the magnetic field, i.e., the Meissner effect. We discuss the physical implications...

We revive a 60-year-old idea that might explain remarkable new observation of periodic low-frequency radio emission from source at galactic distances (GLEAM-X J162759.5-523504.3). It derives the high-density high-temperature charged boson plasma is superconducting superfluid with Meissner effect.

The boundary effects in the screening of an applied magnetic field in a finite temperature 2+1 dimensional model of charged fermions minimally coupled to Maxwell and Chern-Simons fields are investigated. It is found that in a sample with only one boundary -a half-planea total Meissner effect takes place, while in a sample with two boundaries -an infinite stripthe external magnetic field partial...

The most important practical characteristic of a superconductor is its critical current density. This article traces the history of the experimental discoveries and of the development of the theoretical ideas that have lead to the understanding of those factors that control critical current densities. These include Silsbee’s hypothesis, the Meissner effect, the London, Ginsburg–Landau, and Abri...

erratum: the meissner effect in a strongly underdoped cuprate above its critical temperature This Article contains two typographical errors in the first and second paragraphs of the section entitled 'Diamagnetic response': '〈B x 〉ω L /γ µ ' should be '〈B x 〉 = ω L /γ µ ' and '〈 j ab 〉 = 〈(1/µ 0) dB x /dz〉/≠0' should be '〈 j ab 〉 = 〈(1/µ 0) dB x /dz〉≠0' .

We observe a strong variation of the Zeeman splitting of exciton polaritons in microcavities when switching between the linear regime, the polariton lasing, and photon lasing regimes. In the polariton lasing regime the sign of Zeeman splitting changes compared to the linear regime, while in the photon lasing regime the splitting vanishes. We additionally observe an increase of the diamagnetic s...

The expulsion of axisymmetric magnetic field from the event horizons of rapidly rotating black holes has been seen as an astrophysically important effect that may significantly reduce or even nullify the efficiency of the Blandford-Znajek mechanism of powering the relativistic jets in Active Galactic Nuclei and Gamma Ray Bursts. However, this Meissner-like effect is seen in vacuum solutions of ...

The authors present a platform for quantum experiments on levitated particles with masses ranging from nanograms to micrograms. They exploit the Meissner effect magnetically levitate superconducting microparticles chip, in vacuum at ultralow temperatures. Integrated magnetic readout enables coupling circuits. This allows precise measurements of force and acceleration, potential applications sen...