Fractional Charges on an Integer Quantum Hall Edge

被引:82
作者
Berg, E. [1 ]
Oreg, Y. [2 ]
Kim, E.-A. [3 ]
von Oppen, F. [4 ]
机构
[1] Stanford Univ, Dept Phys, Stanford, CA 94305 USA
[2] Weizmann Inst Sci, Dept Condensed Matter Phys, IL-76100 Rehovot, Israel
[3] Cornell Univ, Dept Phys, Ithaca, NY 14853 USA
[4] Free Univ Berlin, Inst Theoret Phys, D-14195 Berlin, Germany
关键词
LUTTINGER LIQUID; TRANSPORT; EXCITATIONS; REGIME; STATES; NOISE; FIELD; WIRE;
D O I
10.1103/PhysRevLett.102.236402
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We propose ways to create and detect fractionally charged excitations in integer quantum Hall edge states. The charge fractionalization occurs due to the Coulomb interaction between electrons propagating on different edge channels. The fractional charge of the solitonlike collective excitations can be observed in time-resolved or frequency-dependent shot noise measurements.
引用
收藏
页数:4
相关论文
共 29 条
[1]   SELECTIVE EQUILIBRATION AMONG THE CURRENT-CARRYING STATES IN THE QUANTUM HALL REGIME [J].
ALPHENAAR, BW ;
MCEUEN, PL ;
WHEELER, RG ;
SACKS, RN .
PHYSICAL REVIEW LETTERS, 1990, 64 (06) :677-680
[2]   EDGE MAGNETOPLASMONS IN THE TIME DOMAIN [J].
ASHOORI, RC ;
STORMER, HL ;
PFEIFFER, LN ;
BALDWIN, KW ;
WEST, K .
PHYSICAL REVIEW B, 1992, 45 (07) :3894-3897
[3]   TUNNELING AND QUANTUM-NOISE IN ONE-DIMENSIONAL LUTTINGER LIQUIDS [J].
CHAMON, CD ;
FREED, DE ;
WEN, XG .
PHYSICAL REVIEW B, 1995, 51 (04) :2363-2379
[4]   Direct observation of a fractional charge [J].
dePicciotto, R ;
Reznikov, M ;
Heiblum, M ;
Umansky, V ;
Bunin, G ;
Mahalu, D .
NATURE, 1997, 389 (6647) :162-164
[5]  
FUJISAWA T, COMMUNICATION, P23402
[6]   QUANTIZED HALL CONDUCTANCE, CURRENT-CARRYING EDGE STATES, AND THE EXISTENCE OF EXTENDED STATES IN A TWO-DIMENSIONAL DISORDERED POTENTIAL [J].
HALPERIN, BI .
PHYSICAL REVIEW B, 1982, 25 (04) :2185-2190
[7]   NONEQUILIBRIUM NOISE AND FRACTIONAL CHARGE IN THE QUANTUM HALL-EFFECT [J].
KANE, CL ;
FISHER, MPA .
PHYSICAL REVIEW LETTERS, 1994, 72 (05) :724-727
[8]  
KELDYSH LV, 1965, SOV PHYS JETP-USSR, V20, P1018
[9]   Interedge tunneling in quantum Hall line junctions [J].
Kim, EA ;
Fradkin, E .
PHYSICAL REVIEW B, 2003, 67 (04)
[10]   VIOLATION OF THE INTEGRAL QUANTUM HALL-EFFECT - INFLUENCE OF BACKSCATTERING AND THE ROLE OF VOLTAGE CONTACTS [J].
KOMIYAMA, S ;
HIRAI, H ;
SASA, S ;
HIYAMIZU, S .
PHYSICAL REVIEW B, 1989, 40 (18) :12566-12569