Relativistic flux quantum in a field-induced deterministic ratchet

被引：39

作者：

Carapella, G ^{[1
]}

机构：

[1] Univ Salerno, INFM, Res Unit, I-84081 Baronissi, Italy

[2] Univ Salerno, Dept Phys, I-84081 Baronissi, Italy

来源：

PHYSICAL REVIEW B | 2001年 / 63卷 / 05期

关键词：

D O I：

10.1103/PhysRevB.63.054515

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We address the problem of a relativistic particle in a periodic asymmetric potential of the ratchet type. As a solid-state realization of such a particle, we consider a single-flux quantum in a long annular Josephson junction embedded in an inhomogeneous magnetic field. A deterministic (nonthermal) regime is theoretically investigated and compared with numerical results. The ratchet velocity of the relativistic fluxon is found qualitatively different from that of a nonrelativistic particle.

引用

页数：2

共 20 条

[1] PERIODICALLY ROCKED THERMAL RATCHETS [J].

BARTUSSEK, R ;

HANGGI, P ;

KISSNER, JG .

EUROPHYSICS LETTERS, 1994, 28 (07) :459-464

[2] NONEQUILIBRIUM FLUCTUATION-INDUCED TRANSPORT [J].

DOERING, CR ;

HORSTHEMKE, W ;

RIORDAN, J .

PHYSICAL REVIEW LETTERS, 1994, 72 (19) :2984-2987

[3] Ratchet potential for fluxons in Josephson-junction arrays [J].

Falo, F ;

Martínez, PJ ;

Mazo, JJ ;

Cilla, S .

EUROPHYSICS LETTERS, 1999, 45 (06) :700-706

[4] OPTICAL THERMAL RATCHET [J].

FAUCHEUX, LP ;

BOURDIEU, LS ;

KAPLAN, PD ;

LIBCHABER, AJ .

PHYSICAL REVIEW LETTERS, 1995, 74 (09) :1504-1507

[5]

FEYNMAN RP, 1963, FEYNMAN LECT PHYSICS

[6] Stochastic resonance [J].

Gammaitoni, L ;

Hanggi, P ;

Jung, P ;

Marchesoni, F .

REVIEWS OF MODERN PHYSICS, 1998, 70 (01) :223-287

[7]

GOLDOBIN E, IN PRESS PHYS REV E

[8] PHASE-LOCKING OF LONG ANNULAR JOSEPHSON-JUNCTIONS COUPLED TO AN EXTERNAL RF MAGNETIC-FIELD [J].

GRONBECHJENSEN, N ;

LOMDAHL, PS ;

SAMUELSEN, MR .

PHYSICS LETTERS A, 1991, 154 (1-2) :14-18

[9] BIFURCATION AND CHAOS IN A DC-DRIVEN LONG ANNULAR JOSEPHSON JUNCTION [J].

GRONBECHJENSEN, N ;

LOMDAHL, PS ;

SAMUELSEN, MR .

PHYSICAL REVIEW B, 1991, 43 (16) :12799-12803

[10] Modeling molecular motors [J].

Julicher, F ;

Ajdari, A ;

Prost, J .

REVIEWS OF MODERN PHYSICS, 1997, 69 (04) :1269-1281

← 1 2 →