Dynamical Scheme for Interferometric Measurements of Full-Counting Statistics

被引：12

作者：

Dasenbrook, David ^{[1
]}

Flindt, Christian ^{[2
]}

机构：

[1] Univ Geneva, Dept Phys Theor, CH-1211 Geneva, Switzerland

[2] Aalto Univ, Dept Appl Phys, Aalto 00076, Finland

来源：

PHYSICAL REVIEW LETTERS | 2016年 / 117卷 / 14期

基金：

芬兰科学院; 瑞士国家科学基金会;

关键词：

SINGLE-ELECTRON TRANSISTOR; MAJORANA BOUND-STATES; GAUSSIAN SHOT-NOISE; COHERENT STATES; HANBURY-BROWN; QUANTUM; INTERFERENCE; OSCILLATIONS;

D O I：

10.1103/PhysRevLett.117.146801

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We propose a dynamical scheme for measuring the full-counting statistics in a mesoscopic conductor using an electronic Mach-Zehnder interferometer. The conductor couples capacitively to one arm of the interferometer and causes a phase shift which is proportional to the number of transferred charges. Importantly, the full-counting statistics can be obtained from average current measurements at the outputs of the interferometer. The counting field can be controlled by varying the time delay between two separate voltage signals applied to the conductor and the interferometer, respectively. As a specific application, we consider measuring the entanglement entropy generated by partitioning electrons on a quantum point contact. Our scheme is robust against moderate environmental dephasing and may be realized thanks to recent advances in gigahertz quantum electronics.

引用

页数：7

共 79 条

[1] Allowed charge transfers between coherent conductors driven by a time-dependent scatterer [J].

Abanov, A. G. ;

Ivanov, D. A. .

PHYSICAL REVIEW LETTERS, 2008, 100 (08)

[2] Factorization of quantum charge transport for noninteracting fermions [J].

Abanov, Alexander G. ;

Ivanov, D. A. .

PHYSICAL REVIEW B, 2009, 79 (20)

[3] Electron Waiting Times in Mesoscopic Conductors [J].

Albert, Mathias ;

Haack, Geraldine ;

Flindt, Christian ;

Buettiker, Markus .

PHYSICAL REVIEW LETTERS, 2012, 108 (18)

[4] Quasiprobabilistic Interpretation of Weak Measurements in Mesoscopic Junctions [J].

Bednorz, Adam ;

Belzig, Wolfgang .

PHYSICAL REVIEW LETTERS, 2010, 105 (10)

[5] Charge detection enables free-electron quantum computation [J].

Beenakker, CWJ ;

DiVincenzo, DP ;

Emary, C ;

Kindermann, M .

PHYSICAL REVIEW LETTERS, 2004, 93 (02) :020501-1

[6] Full counting statistics of electron transfer between superconductors [J].

Belzig, W ;

Nazarov, YV .

PHYSICAL REVIEW LETTERS, 2001, 87 (19) :197006-1

[7] Finite-bias visibility dependence in an electronic Mach-Zehnder interferometer [J].

Bieri, E. ;

Weiss, M. ;

Goektas, O. ;

Hauser, M. ;

Schoenenberger, C. ;

Oberholzer, S. .

PHYSICAL REVIEW B, 2009, 79 (24)

[8] Shot noise in mesoscopic conductors [J].

Blanter, YM ;

Büttiker, M .

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 2000, 336 (1-2) :1-166

[9] Electron quantum optics in ballistic chiral conductors [J].

Bocquillon, Erwann ;

Freulon, Vincent ;

Parmentier, Francois D. ;

Berroir, Jean-Marc ;

Placais, Bernard ;

Wahl, Claire ;

Rech, Jerome ;

Jonckheere, Thibaut ;

Martin, Thierry ;

Grenier, Charles ;

Ferraro, Dario ;

Degiovanni, Pascal ;

Feve, Gwendal .

ANNALEN DER PHYSIK, 2014, 526 (1-2) :1-30

[10] Measurement of counting statistics of electron transport in a tunnel junction [J].

Bomze, Y ;

Gershon, G ;

Shovkun, D ;

Levitov, LS ;

Reznikov, M .

PHYSICAL REVIEW LETTERS, 2005, 95 (17)

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