Electronic transport through a ring-shaped array of quantum dots

Making use of the equation of motion method and Keldysh Green function technique, we have developed a calculation method for the ring-shaped array of quantum dots with arbitrary dots. A general formula for the current under dc bias is obtained; the transmission probability and the differential conductance are numerically studied.

[1]  C. H. Kam,et al.  Quantum transport in a one-dimensional quantum dot array , 2001 .

[2]  Meir,et al.  Time-dependent transport in interacting and noninteracting resonant-tunneling systems. , 1994, Physical review. B, Condensed matter.

[3]  Hartmut Haug,et al.  Quantum Kinetics in Transport and Optics of Semiconductors , 2004 .

[4]  Smith,et al.  Conductance oscillations periodic in the density of a one-dimensional electron gas. , 1989, Physical review letters.

[5]  M. L. Ladron de Guevara,et al.  Transport through a quantum wire with a side quantum-dot array , 2003 .

[6]  Tae-Suk Kim,et al.  Even-odd parity effects in conductance and shot noise of metal–atomic-wire–metal (superconducting) junctions , 2002 .

[7]  Z.Y.Zeng,et al.  Delocalization and conductance quantization in one-dimensional systems attached to leads , 2002 .

[8]  K. Chang,et al.  Even-odd behavior of conductance in monatomic sodium wires. , 2001, Physical review letters.

[9]  T. Ng,et al.  On-site Coulomb repulsion and resonant tunneling. , 1988, Physical review letters.

[10]  W. Wegscheider,et al.  Aharonov-Bohm oscillations of a tuneable quantum ring , 2002 .

[11]  Kouwenhoven,et al.  A tunable kondo effect in quantum dots , 1998, Science.

[12]  Wilkins,et al.  Resonant tunneling through an Anderson impurity. I. Current in the symmetric model. , 1992, Physical review. B, Condensed matter.

[13]  Wilkins,et al.  Probing the Kondo resonance by resonant tunneling through an Anderson impurity. , 1991, Physical review letters.

[14]  Meir,et al.  Landauer formula for the current through an interacting electron region. , 1992, Physical review letters.

[15]  R. Landauer,et al.  Generalized many-channel conductance formula with application to small rings. , 1985, Physical review. B, Condensed matter.

[16]  N. C. van der Vaart,et al.  Single electron charging effects in semiconductor quantum dots , 1991 .

[17]  Meir,et al.  Anderson model out of equilibrium: Noncrossing-approximation approach to transport through a quantum dot. , 1994, Physical review. B, Condensed matter.

[18]  Junichi Motohisa,et al.  Single electron transport and current quantization in a novel quantum dot structure , 1994 .

[19]  Lee,et al.  Low-temperature transport through a quantum dot: The Anderson model out of equilibrium. , 1993, Physical review letters.

[20]  Robert H. Blick,et al.  Probing and Controlling the Bonds of an Artificial Molecule , 2002, Science.

[21]  M. Kastner,et al.  Kondo effect in a single-electron transistor , 1997, Nature.

[22]  R. J. Luyken,et al.  Spectroscopy of nanoscopic semiconductor rings. , 1999, Physical review letters.

[23]  D. Mailly,et al.  Experimental observation of persistent currents in GaAs-AlGaAs single loop. , 1993, Physical review letters.

[24]  Chandrasekhar,et al.  Magnetic response of a single, isolated gold loop. , 1991, Physical review letters.

[25]  R H Blick,et al.  Coherent coupling of two quantum dots embedded in an Aharonov-Bohm interferometer. , 2001, Physical review letters.

[26]  Lin,et al.  Coherent transport through a coupled-quantum-dot system with strong intradot interaction. , 1995, Physical review. B, Condensed matter.