Josephson network as a model for high-temperature superconductor and beyond: Macroscopic quantum coherence probed by microwave absorption
Abstract
Since the seminal experiment by Stankowski et al. [Phys. Rev. B 36, 7126 (1987)] on YBa2Cu3O7−x, Magnetically-Modulated Microwave Absorption (MMMA) has become an important technique for detecting the superconducting transition in inhomogeneous ceramic compounds. The rise of microwave absorption below Tc is accompanied by several low-field anomalies, usually attributed to the weak links between superconducting grains showing the Josephson effect, or to the dynamics of Abrikosov-Josephson vortices. In this article, we briefly review selected theoretical models rationalizing MMMA spectra for high-temperature superconductors, focusing on the $3$-dimensional array of Josephson junctions with random parameters including the resistivity, capacity and inductance of each junction, showing characteristic absorption anomalies observed in the experiment. The implications for recently studied microwave absorption in Josephson junction qubits are also discussed.
Related
- Time-reversal symmetry breaking and inherent Josephson diodes in a multi-component order parameter superconductor
- Current - voltage characteristics in magnetic field for layered superconductor with intrinsic pinning of Josephson vortices
- Local Josephson response near nonmagnetic impurities and vortices in a two-orbital s± superconductor
- Evidencing Macroscopic Quantum Coherence using Confined Uniform Magnetic Field
- Macroscopic quantum coherence and entanglement in mechanical systems
BibTeX
@misc{rycerz2026josephson,
title = {{Josephson network as a model for high-temperature superconductor and beyond: Macroscopic quantum coherence probed by microwave absorption}},
author = {Adam Rycerz},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2608.15441},
eprint = {2608.15441},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2608.15441},
}
RIS
TY - UNPB
TI - Josephson network as a model for high-temperature superconductor and beyond: Macroscopic quantum coherence probed by microwave absorption
AU - Adam Rycerz
PY - 2026
DA - 2026/09/07
PB - arXiv
DO - 10.48550/arxiv.2608.15441
UR - https://arxiv.org/abs/2608.15441
AB - Since the seminal experiment by Stankowski et al. [Phys. Rev. B 36, 7126 (1987)] on YBa_2Cu_3O_7−x, Magnetically-Modulated Microwave Absorption (MMMA) has become an important technique for detecting the superconducting transition in inhomogeneous ceramic compounds. The rise of microwave absorption below T_c is accompanied by several low-field anomalies, usually attributed to the weak links between superconducting grains showing the Josephson effect, or to the dynamics of Abrikosov-Josephson vortices. In this article, we briefly review selected theoretical models rationalizing MMMA spectra for high-temperature superconductors, focusing on the $3$-dimensional array of Josephson junctions with random parameters including the resistivity, capacity and inductance of each junction, showing characteristic absorption anomalies observed in the experiment. The implications for recently studied microwave absorption in Josephson junction qubits are also discussed.
ER -