The interpretation of experimentally measured magnetic susceptibilities of a SQUID ring in terms of the quantum mechanics of a double Josephson junction

1996 ◽  
Vol 9 (1) ◽  
pp. 34-42 ◽  
Author(s):  
A I M Rae
Keyword(s):  
Quantum Mechanics ◽  
Josephson Junction ◽  
Magnetic Susceptibilities

Quantum Mechanics of a Macroscopic Variable: The Phase Difference of a Josephson Junction

Science ◽  
1988 ◽  
Vol 239 (4843) ◽  
pp. 992-997 ◽  
Author(s):  
J. CLARKE ◽  
A. N. CLELAND ◽  
M. H. DEVORET ◽  
D. ESTEVE ◽  
J. M. MARTINIS
Keyword(s):  
Quantum Mechanics ◽  
Josephson Junction ◽  
Phase Difference ◽  
Macroscopic Variable

scholarly journals q-DEFORMED DYNAMICS AND JOSEPHSON JUNCTION

2000 ◽  
Vol 14 (27n28) ◽  
pp. 961-966
Author(s):  
RAMANDEEP S. JOHAL
Keyword(s):  
Quantum Mechanics ◽  
Josephson Junction ◽  
Critical Current ◽  
Rate Equation ◽  
Physical Interpretation ◽  
Deformation Parameter ◽  
Heisenberg Equation

We define a generalized rate equation for an observable in quantum mechanics, that involves a parameter q and whose limit q→1 gives the standard Heisenberg equation. The generalized rate equation is used to study dynamics of current-biased Josephson junction. It is observed that this toy model incorporates diffraction-like effects in the critical current. Physical interpretation for q is provided which is also shown to be a q-deformation parameter.

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