scholarly journals Meissner effect for weakly isolated horizons

2017 ◽  
Vol 95 (6) ◽  
Author(s):  
Norman Gürlebeck ◽  
Martin Scholtz
Keyword(s):  
Meissner Effect ◽  
Isolated Horizons

The Meissner Effect in Copper-Containing Fullerides

2001 ◽  
Vol 35 (6) ◽  
pp. 659 ◽  
Author(s):  
A. V. Prikhod’ko
Keyword(s):  
Meissner Effect

scholarly journals Non-linear Terahertz driving of plasma waves in layered cuprates

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Francesco Gabriele ◽  
Mattia Udina ◽  
Lara Benfatto
Keyword(s):  
Low Frequency ◽  
Plasma Waves ◽  
Meissner Effect ◽  
High Energy ◽  
Plasma Mode ◽  
Light Pulses ◽  
High Frequency Plasma ◽  
Non Linear ◽  
Out Of Plane ◽  
Layered Cuprates

AbstractThe hallmark of superconductivity is the rigidity of the quantum-mechanical phase of electrons, responsible for superfluid behavior and Meissner effect. The strength of the phase stiffness is set by the Josephson coupling, which is strongly anisotropic in layered cuprates. So far, THz light pulses have been used to achieve non-linear control of the out-of-plane Josephson plasma mode, whose frequency lies in the THz range. However, the high-energy in-plane plasma mode has been considered insensitive to THz pumping. Here, we show that THz driving of both low-frequency and high-frequency plasma waves is possible via a general two-plasmon excitation mechanism. The anisotropy of the Josephson couplings leads to markedly different thermal effects for the out-of-plane and in-plane response, linking in both cases the emergence of non-linear photonics across Tc to the superfluid stiffness. Our results show that THz light pulses represent a preferential knob to selectively drive phase excitations in unconventional superconductors.

scholarly journals Linear Energy Density and the Flux of an Electric Field in Proca Tubes

Symmetry ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 640
Author(s):  
Vladimir Dzhunushaliev ◽  
Vladimir Folomeev ◽  
Abylaikhan Tlemisov
Keyword(s):  
Scalar Field ◽  
Electric Field ◽  
Higgs Field ◽  
Meissner Effect ◽  
Coupling Constant ◽  
Cylindrically Symmetric ◽  
Integral Characteristics ◽  
Energy And Momentum ◽  
Energy And Momentum Densities ◽  
Higgs Scalar

In this work, we study cylindrically symmetric solutions within SU(3) non-Abelian Proca theory coupled to a Higgs scalar field. The solutions describe tubes containing either the flux of a color electric field or the energy flux and momentum. It is shown that the existence of such tubes depends crucially on the presence of the Higgs field (there are no such solutions without this field). We examine the dependence of the integral characteristics (linear energy and momentum densities) on the values of the electromagnetic potentials at the center of the tube, as well as on the values of the coupling constant of the Higgs scalar field. The solutions obtained are topologically trivial and demonstrate the dual Meissner effect: the electric field is pushed out by the Higgs scalar field.

Influence of the phase separation on the meissner effect of La2CuO4

1990 ◽  
Vol 165-166 ◽  
pp. 1157-1158 ◽  
Author(s):  
A. Suplice ◽  
P. Lejay ◽  
R. Tournier ◽  
B. Chevalier ◽  
G. Demazeau ◽  
...  
Keyword(s):  
Phase Separation ◽  
Meissner Effect

The growth of Ba/sub 1-x/K/sub x/BiO/sub 3/ superconducting single crystals with the large Meissner effect

1995 ◽  
Vol 5 (2) ◽  
pp. 1325-1327 ◽  
Author(s):  
N.V. Anshukova ◽  
A.I. Golovashkin ◽  
L.I. Ivanova ◽  
O.T. Maljuchkov ◽  
A.P. Rusakov
Keyword(s):  
Single Crystals ◽  
Meissner Effect

scholarly journals EFFECT OF A LOCALLY REPULSIVE INTERACTION ON s-WAVE SUPERCONDUCTORS

2010 ◽  
Vol 22 (03) ◽  
pp. 233-303 ◽  
Author(s):  
J.-B BRU ◽  
W. DE SIQUEIRA PEDRA
Keyword(s):  
Phase Transition ◽  
Chemical Potential ◽  
Large Deviation ◽  
Coulomb Repulsion ◽  
Meissner Effect ◽  
Repulsive Interaction ◽  
S Wave ◽  
Insulator Phase Transition ◽  
The One ◽  
Strong Repulsion

The thermodynamic impact of the Coulomb repulsion on s-wave superconductors is analyzed via a rigorous study of equilibrium and ground states of the strong coupling BCS-Hubbard Hamiltonian. We show that the one-site electron repulsion can favor superconductivity at fixed chemical potential by increasing the critical temperature and/or the Cooper pair condensate density. If the one-site repulsion is not too large, a first or a second order superconducting phase transition can appear at low temperatures. The Meißner effect is shown to be rather generic but coexistence of superconducting and ferromagnetic phases is also shown to be feasible, for instance, near half-filling and at strong repulsion. Our proof of a superconductor-Mott insulator phase transition implies a rigorous explanation of the necessity of doping insulators to create superconductors. These mathematical results are consequences of "quantum large deviation" arguments combined with an adaptation of the proof of Størmer's theorem [1] to even states on the CAR algebra.

scholarly journals Paramagnetic Meissner effect in multiply-connected superconductors

2000 ◽  
Vol 62 (21) ◽  
pp. 14380-14383 ◽  
Author(s):  
A. P. Nielsen ◽  
A. B. Cawthorne ◽  
P. Barbara ◽  
F. C. Wellstood ◽  
C. J. Lobb ◽  
...  
Keyword(s):  
Meissner Effect ◽  
Paramagnetic Meissner Effect ◽  
Multiply Connected
Sign in / Sign up

Export Citation Format

Share Document