josephson junction array
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scholarly journals Control of global variables for identical and non-identical Josephson junctions arrays

2021 ◽  
pp. 138-142
Author(s):  
Nikolay Litvinov
Keyword(s):  
Computer Simulation ◽  
Josephson Junction ◽  
Josephson Junctions ◽  
Josephson Current ◽  
Global Variables ◽  
Phase Stabilization ◽  
Josephson Junction Array ◽  
Junction Array ◽  
Lq Problem

In the paper a way to solve an LQ-problem for a Josephson junction array with a common LRC-load is proposed. The cases of identical and non-identical Josephson junctions are considered. The solution ensures phase stabilization of Josephson current in every junction. The results are obtained using computer simulation in Jupyter Notebook and MATLAB.

scholarly journals Driving a low critical current Josephson junction array with a mode-locked laser

2021 ◽  
Vol 119 (3) ◽  
pp. 032601
Author(s):  
J. Nissilä ◽  
T. Fordell ◽  
K. Kohopää ◽  
E. Mykkänen ◽  
P. Immonen ◽  
...  
Keyword(s):  
Josephson Junction ◽  
Critical Current ◽  
Josephson Junction Array ◽  
Junction Array ◽  
Mode Locked Laser

scholarly journals Phase interference for probing topological fractional charge in a BiSbTeSe2-based Josephson Junction Array

2021 ◽  
Author(s):  
J.M. Brevoord ◽  
Daan Wielens ◽  
Martijn Lankhorst ◽  
J. Dı́ez-Mérida ◽  
Yingkai Huang ◽  
...  
Keyword(s):  
Josephson Junction ◽  
Fractional Charge ◽  
Josephson Junction Array ◽  
Phase Interference ◽  
Junction Array

scholarly journals Description of zero field steps on the potential energy surface of a Frenkel-Kontorova model for annular Josephson junction arrays

2021 ◽  
Vol 94 (5) ◽  
Author(s):  
W. Quapp ◽  
J. M. Bofill
Keyword(s):  
Josephson Junction ◽  
Energy Surface ◽  
Zero Field ◽  
Josephson Junction Arrays ◽  
Josephson Junction Array ◽  
Junction Array ◽  
A Chain ◽  
Junction Arrays ◽  
Kontorova Model ◽  
Phase Differences

Abstract We explain the emergence of zero field steps (ZFS) in a Frenkel-Kontorova (FK) model for a 1D annular chain being a model for an annular Josephson junction array. We demonstrate such steps for a case with a chain of 10 phase differences. We necessarily need the periodic boundary conditions. We propose a mechanism for the jump from M fluxons to $$M+1$$ M + 1 in the chain. Graphic abstract

scholarly journals Probing XY phase transitions in a Josephson junction array with tunable frustration

2020 ◽  
Vol 102 (9) ◽  
Author(s):  
R. Cosmic ◽  
K. Kawabata ◽  
Y. Ashida ◽  
H. Ikegami ◽  
S. Furukawa ◽  
...  
Keyword(s):  
Phase Transitions ◽  
Josephson Junction ◽  
Josephson Junction Array ◽  
Junction Array

scholarly journals Simulation of THz oscillations in an intrinsic Josephson junction array

2020 ◽  
Vol 1590 ◽  
pp. 012018
Author(s):  
Yusuke Fujiki ◽  
Masaru Kato
Keyword(s):  
Josephson Junction ◽  
Josephson Junction Array ◽  
Junction Array ◽  
Intrinsic Josephson Junction

scholarly journals High dynamic resistance elements based on a Josephson junction array

2020 ◽  
Vol 11 ◽  
pp. 417-420
Author(s):  
Konstantin Yu Arutyunov ◽  
Janne Samuel Lehtinen
Keyword(s):  
Coulomb Blockade ◽  
Zero Magnetic Field ◽  
Dynamic Resistance ◽  
Bloch Oscillations ◽  
Quantum Phase Slip ◽  
Josephson Junction Array ◽  
Junction Array ◽  
High Dynamic ◽  
Lift Off ◽  
A Chain

A chain of superconductor–insulator–superconductor junctions based on Al–AlO x –Al nanostructures and fabricated using conventional lift-off lithography techniques was measured at ultra-low temperatures. At zero magnetic field, the low current bias dynamic resistance can reach values of ≈1011 Ω. It was demonstrated that the system can provide a decent quality current biasing circuit, enabling the observation of Coulomb blockade and Bloch oscillations in ultra-narrow Ti nanowires associated with the quantum phase-slip effect.

scholarly journals High dynamic resistance elements based on Josephson junction array

2019 ◽  
Author(s):  
Konstantin Arutyunov ◽  
Janne Samuel Lehtinen
Keyword(s):  
Coulomb Blockade ◽  
Zero Magnetic Field ◽  
Dynamic Resistance ◽  
Phase Slip ◽  
Bloch Oscillations ◽  
Quantum Phase Slip ◽  
Josephson Junction Array ◽  
Junction Array ◽  
High Dynamic ◽  
Lift Off

Chain of superconductor-insulator-superconductor junctions based on Al-AlO x -Al... lift-off fabricated nanostructures was measured at ultra-low temperatures. At zero magnetic field the low current bias dynamic resistance can reach values ~1011 W.  The system has been proved to provide a decent quality current biasing circuit enabling observation of Coulomb blockade and Bloch oscillations in ultra-narrow Ti nanowires associated with quantum phase slip effect.

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