1
|
Maslova NS, Arseyev PI, Mantsevich VN. Tunneling current and noise of entangled electrons in correlated double quantum dot. Sci Rep 2021; 11:9336. [PMID: 33927283 PMCID: PMC8085215 DOI: 10.1038/s41598-021-88721-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Accepted: 04/16/2021] [Indexed: 11/10/2022] Open
Abstract
We developed general approach for the analysis of tunneling current and its zero frequency noise for a wide class of systems where electron transport occurs through the intermediate structure with localized electrons. Proposed approach opens the possibility to study electron transport through multi-electron correlated states and allows to reveal the influence of spatial and spin symmetry of the total system on the electron transport. This approach is based on Keldysh diagram technique in pseudo-particle representation taking into account the operator constraint on the number of pseudo-particles, which gives the possibility to exclude non-physical states. It was shown that spatial and spin symmetry of the total system can block some channels for electron transport through the correlated quantum dots. Moreover, it was demonstrated that the stationary tunneling current and zero frequency noise in correlated coupled quantum dots depend on initial state of the system. In the frame of the proposed approach it was also shown that for the parallel coupling of two correlated quantum dots to the reservoirs tunneling current and its zero frequency noise are suppressed if tunneling occurs through the entangled triplet state with zero total spin projection on the z axis or enhanced for the tunneling through the singlet state in comparison with electron transport through the uncorrelated localized single-electron state. Obtained results demonstrate that two-electron entangled states in correlated quantum dots give the possibility to tune the zero frequency noise amplitude by blocking some channels for electron transport that is very promising in the sense of two-electron entangled states application in quantum communication and logic devices. The obtained nonmonotonic behavior of Fano factor as a function of applied bias is the direct manifestation of the possibility to control the noise to signal ration in correlated quantum dots. We also provide detailed calculations of current and noise for both single type of carriers and two different types of carriers in the presence and in the absence of Coulomb interaction in Supplementary materials.
Collapse
Affiliation(s)
- N S Maslova
- Quantum Technology Center and Quantum electronics department, Faculty of Physics, Lomonosov Moscow State University, Moscow, 119991, Russia
| | - P I Arseyev
- P.N. Lebedev Physical Institute RAS, 119991, Moscow, Russia
| | - V N Mantsevich
- Quantum Technology Center and department of Semiconductor physics and Cryoelectronics, Faculty of Physics, Lomonosov Moscow State University, Moscow, 119991, Russia.
| |
Collapse
|
2
|
Danneau R, Wu F, Craciun MF, Russo S, Tomi MY, Salmilehto J, Morpurgo AF, Hakonen PJ. Shot noise in ballistic graphene. PHYSICAL REVIEW LETTERS 2008; 100:196802. [PMID: 18518472 DOI: 10.1103/physrevlett.100.196802] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2007] [Indexed: 05/26/2023]
Abstract
We have investigated shot noise in graphene field effect devices in the temperature range of 4.2-30 K at low frequency (f=600-850 MHz). We find that for our graphene samples with a large width over length ratio W/L, the Fano factor F reaches a maximum F ~ 1/3 at the Dirac point and that it decreases strongly with increasing charge density. For smaller W/L, the Fano factor at Dirac point is significantly lower. Our results are in good agreement with the theory describing that transport at the Dirac point in clean graphene arises from evanescent electronic states.
Collapse
Affiliation(s)
- R Danneau
- Low Temperature Laboratory, Helsinki University of Technology, Espoo, Finland.
| | | | | | | | | | | | | | | |
Collapse
|
3
|
Chen YC, Di Ventra M. Effect of electron-phonon scattering on shot noise in nanoscale junctions. PHYSICAL REVIEW LETTERS 2005; 95:166802. [PMID: 16241831 DOI: 10.1103/physrevlett.95.166802] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2005] [Indexed: 05/05/2023]
Abstract
We investigate the effect of electron-phonon inelastic scattering on shot noise in nanoscale junctions in the regime of quasiballistic transport. We predict that when the local thermal energy of the junction is larger than its lowest vibrational mode energy eV(c), the inelastic contribution to shot noise (conductance) increases (decreases) with bias as V (sqrt[V]). The corresponding Fano factor thus increases as sqrt[V]. We also show that the inelastic contribution to the Fano factor saturates with increasing thermal current exchanged between the junction and the bulk electrodes to a value which, for V >> V(c), is independent of bias. These predictions can be readily tested experimentally.
Collapse
Affiliation(s)
- Yu-Chang Chen
- Department of Electrophysics, National Chiao Tung University, Hsinchu, Taiwan.
| | | |
Collapse
|
4
|
Gomila G, Pennetta C, Reggiani L, Sampietro M, Ferrari G, Bertuccio G. Shot noise in linear macroscopic resistors. PHYSICAL REVIEW LETTERS 2004; 92:226601. [PMID: 15245247 DOI: 10.1103/physrevlett.92.226601] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2003] [Indexed: 05/24/2023]
Abstract
We report on direct experimental evidence of shot noise in a linear macroscopic resistor. The origin of the shot noise comes from the fluctuation of the total number of charge carriers inside the resistor associated with their diffusive motion under the condition that the dielectric relaxation time becomes longer than the dynamic transit time. The present results show that neither potential barriers nor the absence of inelastic scattering are necessary to observe shot noise in electronic devices.
Collapse
Affiliation(s)
- G Gomila
- Department d'Electronica and Research Centre for Bioelectronics and Nanobioscience, Universitat de Barcelona, Edifici Modulari, Josep Samitier 1-5, 08028 Barcelona, Spain
| | | | | | | | | | | |
Collapse
|
5
|
Aguado R, Brandes T. Shot noise spectrum of open dissipative quantum two-level systems. PHYSICAL REVIEW LETTERS 2004; 92:206601. [PMID: 15169372 DOI: 10.1103/physrevlett.92.206601] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2003] [Indexed: 05/24/2023]
Abstract
We study the current noise spectrum of qubits under transport conditions in a dissipative bosonic environment. We combine (non-)Markovian master equations with correlation functions in Laplace space to derive a noise formula for both weak and strong coupling to the bath. The coherence-induced reduction of noise is diminished by weak dissipation and/or a large level separation (bias). For weak dissipation, we demonstrate that the dephasing and relaxation rates of the two-level systems can be extracted from noise. In the strong dissipation regime, the localization-delocalization transition becomes visible in the low-frequency noise.
Collapse
Affiliation(s)
- Ramón Aguado
- Departamento de Teoría de la Materia Condensada, Instituto de Ciencia de Materiales de Madrid, CSIC, Cantoblanco 28049, Madrid, Spain
| | | |
Collapse
|
6
|
Blanter Y, Langen S, Buttiker M. Exchange effects in shot noise in multi-terminal devices. ACTA ACUST UNITED AC 1998. [DOI: 10.3367/ufnr.0168.199802m.0159] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
|
7
|
Distribution of transmitted charge through a double-barrier junction. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 54:8144-8149. [PMID: 9984495 DOI: 10.1103/physrevb.54.8144] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
8
|
Yamanishi M, Watanabe K, Jikutani N, Ueda M. Sub-poissonian photon-state generation by Stark-effect blockade of emissions in a semiconductor diode driven by a constant-voltage source. PHYSICAL REVIEW LETTERS 1996; 76:3432-3435. [PMID: 10060965 DOI: 10.1103/physrevlett.76.3432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
|
9
|
Nagaev KE. Influence of electron-electron scattering on shot noise in diffusive contacts. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 52:4740-4743. [PMID: 9981648 DOI: 10.1103/physrevb.52.4740] [Citation(s) in RCA: 55] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
10
|
Kim J, Kan H, Yamamoto Y. Macroscopic Coulomb-blockade effect in a constant-current-driven light-emitting diode. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 52:2008-2012. [PMID: 9981270 DOI: 10.1103/physrevb.52.2008] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
11
|
Liu HC, Li J, Aers GC, Leavens CR, Buchanan M, Wasilewski ZR. Shot-noise suppression in resonant tunneling. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 51:5116-5120. [PMID: 9979388 DOI: 10.1103/physrevb.51.5116] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
12
|
Liu RC, Yamamoto Y. Nyquist noise in the transition from mesoscopic to macroscopic transport. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 50:17411-17414. [PMID: 9976145 DOI: 10.1103/physrevb.50.17411] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
13
|
Liefrink F, Dijkhuis JI, Molenkamp LW. Experimental study of reduced shot noise in a diffusive mesoscopic conductor. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 49:14066-14069. [PMID: 10010370 DOI: 10.1103/physrevb.49.14066] [Citation(s) in RCA: 45] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
14
|
Liu RC, Yamamoto Y. Suppression of quantum partition noise in mesoscopic electron branching circuits. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 49:10520-10532. [PMID: 10009877 DOI: 10.1103/physrevb.49.10520] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
15
|
Guinea F, Ueda M. Sub-Coulomb-gap conductance in small tunnel junctions. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 49:5722-5725. [PMID: 10011537 DOI: 10.1103/physrevb.49.5722] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
16
|
|
17
|
Yamanishi M, Lee Y. Scheme for generation of sub-Poissonian photons: Antibunching of emission events by population-dependent spontaneous-emission lifetime in semiconductor microcavities. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1993; 48:R2534-R2537. [PMID: 9910005 DOI: 10.1103/physreva.48.r2534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
|
18
|
Imamoglu A, Yamamoto Y. Noise suppression in semiconductor p-i-n junctions: Transition from macroscopic squeezing to mesoscopic Coulomb blockade of electron emission processes. PHYSICAL REVIEW LETTERS 1993; 70:3327-3330. [PMID: 10053840 DOI: 10.1103/physrevlett.70.3327] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
|