TY - CHAP
T1 - Mesoscopic superconductivity
T2 - Josephson current through spin-polarized luttinger liquid
AU - Yokoshi, Nobuhiko
AU - Kurihara, Susumu
PY - 2005/1/1
Y1 - 2005/1/1
N2 - Josephson current through a Luttinger liquid (LL) under a magnetic field is theoretically studied. We derive an analytical expression of Josephson current for clean interfaces, by using quasiclassical Green’s function and functional bosonization procedure. Because of spin-dependent energy shift in Andreev bound states, current-phase relations acquire positive slopes at phase difference x=π (π-state). Renormalization of the critical current, due to electron-electron interactions, is found. Further, we show that repulsive interactions detabilize the π-state, while attractive ones stabilize.
AB - Josephson current through a Luttinger liquid (LL) under a magnetic field is theoretically studied. We derive an analytical expression of Josephson current for clean interfaces, by using quasiclassical Green’s function and functional bosonization procedure. Because of spin-dependent energy shift in Andreev bound states, current-phase relations acquire positive slopes at phase difference x=π (π-state). Renormalization of the critical current, due to electron-electron interactions, is found. Further, we show that repulsive interactions detabilize the π-state, while attractive ones stabilize.
UR - http://www.scopus.com/inward/record.url?scp=84967351123&partnerID=8YFLogxK
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U2 - 10.1142/9789812701619_0018
DO - 10.1142/9789812701619_0018
M3 - Chapter
AN - SCOPUS:84967351123
SN - 9789812701619
SN - 9789812564689
SP - 114
EP - 119
BT - Realizing Controllable Quantum States: Mesoscopic Superconductivity and Spintronics - In the Light of Quantum Computation
PB - World Scientific Publishing Co.
ER -