Evidence of dual Shapiro steps in a Josephson junction array

N Crescini, S Cailleaux, W Guichard, C Naud… - Nature Physics, 2023 - nature.com
The modern primary voltage standard is based on the ac Josephson effect and the ensuing
Shapiro steps, where a microwave tone applied to a Josephson junction yields a constant …

One-dimensional Josephson junction arrays: Lifting the Coulomb blockade by depinning

N Vogt, R Schäfer, H Rotzinger, W Cui, A Fiebig… - Physical Review B, 2015 - APS
Experiments with one-dimensional arrays of Josephson junctions in the regime of
dominating charging energy show that the Coulomb blockade is lifted at the threshold …

Superconductor-insulator transition in disordered Josephson-junction chains

M Bard, IV Protopopov, IV Gornyi, A Shnirman… - Physical Review B, 2017 - APS
We study the superconductor-insulator quantum phase transition in disordered Josephson-
junction chains. To this end, we derive the field theory from the lattice model that describes a …

Topologically enforced bifurcations in superconducting circuits

G Engelhardt, M Benito, G Platero, T Brandes - Physical review letters, 2017 - APS
The relationship of topological insulators and superconductors and the field of nonlinear
dynamics is widely unexplored. To address this subject, we adopt the linear coupling …

Localizing quantum phase slips in one-dimensional Josephson junction chains

A Ergül, J Lidmar, J Johansson, Y Azizoğlu… - New Journal of …, 2013 - iopscience.iop.org
We studied quantum phase-slip (QPS) phenomena in long one-dimensional Josephson
junction series arrays with tunable Josephson coupling. These chains were fabricated with …

Quantum simulation of traversable wormhole spacetimes in a dc-SQUID array

C Sabín - Physical Review D, 2016 - APS
We present an analog quantum simulator of spacetimes containing traversable wormholes.
A suitable spatial dependence in the external bias of a dc-SQUID array mimics the …

Decay of plasmonic waves in Josephson junction chains

M Bard, IV Protopopov, AD Mirlin - Physical Review B, 2018 - APS
We study the damping of plasma waves in linear Josephson junction chains as well as in
two capacitively coupled chains. In the parameter regime where the ground capacitance can …

One-dimensional sections of exotic spacetimes with superconducting circuits

C Sabín - New Journal of Physics, 2018 - iopscience.iop.org
We introduce analogue quantum simulations of 1+ 1 dimensional sections of exotic 3+ 1
dimensional spacetimes, such as Alcubierre warp-drive spacetime, Gödel rotating universe …

[HTML][HTML] Towards Quantum Simulation of Black Holes in a dc-SQUID Array

A Terrones, C Sabín - Universe, 2021 - mdpi.com
We propose quantum simulations of 1+ 1D radial sections of different black hole spacetimes
(Schwarzschild, Reissner–Nordstrøm, Kerr and Kerr–Newman), by means of a dc-SQUID …

Analogue non-causal Null Curves and Chronology protection in a dc-SQUID Array

C Sabín - Universe, 2022 - mdpi.com
We propose an analogue quantum simulator of a 1+ 1D spacetime containing non-causal
curves, in particular null geodesics going back in time, by means of a dc-SQUID array …