Transport and interaction blockade of cold bosonic atoms in a triple-well potential
(2010) In New Journal of Physics 12.- Abstract
- We theoretically investigate the transport properties of cold bosonic atoms in a quasi-one-dimensional (1D) triple-well potential that consists of two large outer wells, which act as microscopic source and drain reservoirs, and a small inner well, which represents a quantum-dot-like scattering region. Bias and gate 'voltages' introduce a time-dependent tilt of the triple-well configuration, and are used to shift the energetic level of the inner well with respect to the outer ones. By means of exact diagonalization considering a total number of six atoms in the triple-well potential, we find diamond-like structures for the occurrence of single-atom transport in the parameter space spanned by the bias and gate voltages. We discuss the... (More)
- We theoretically investigate the transport properties of cold bosonic atoms in a quasi-one-dimensional (1D) triple-well potential that consists of two large outer wells, which act as microscopic source and drain reservoirs, and a small inner well, which represents a quantum-dot-like scattering region. Bias and gate 'voltages' introduce a time-dependent tilt of the triple-well configuration, and are used to shift the energetic level of the inner well with respect to the outer ones. By means of exact diagonalization considering a total number of six atoms in the triple-well potential, we find diamond-like structures for the occurrence of single-atom transport in the parameter space spanned by the bias and gate voltages. We discuss the analogy with Coulomb blockade in electronic quantum dots, and point out how one can infer the interaction energy in the central well from the distance between the diamonds. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1657369
- author
- Schlagheck, P. ; Malet, Francesc LU ; Cremon, Jonas LU and Reimann, Stephanie LU
- organization
- publishing date
- 2010
- type
- Contribution to journal
- publication status
- published
- subject
- in
- New Journal of Physics
- volume
- 12
- publisher
- IOP Publishing
- external identifiers
-
- wos:000279878000007
- scopus:77955065431
- ISSN
- 1367-2630
- DOI
- 10.1088/1367-2630/12/6/065020
- language
- English
- LU publication?
- yes
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Mathematical Physics (Faculty of Technology) (011040002)
- id
- 523d9f89-b205-4655-9c0e-b148dd9265ae (old id 1657369)
- date added to LUP
- 2016-04-01 14:33:40
- date last changed
- 2023-11-13 09:17:51
@article{523d9f89-b205-4655-9c0e-b148dd9265ae,
abstract = {{We theoretically investigate the transport properties of cold bosonic atoms in a quasi-one-dimensional (1D) triple-well potential that consists of two large outer wells, which act as microscopic source and drain reservoirs, and a small inner well, which represents a quantum-dot-like scattering region. Bias and gate 'voltages' introduce a time-dependent tilt of the triple-well configuration, and are used to shift the energetic level of the inner well with respect to the outer ones. By means of exact diagonalization considering a total number of six atoms in the triple-well potential, we find diamond-like structures for the occurrence of single-atom transport in the parameter space spanned by the bias and gate voltages. We discuss the analogy with Coulomb blockade in electronic quantum dots, and point out how one can infer the interaction energy in the central well from the distance between the diamonds.}},
author = {{Schlagheck, P. and Malet, Francesc and Cremon, Jonas and Reimann, Stephanie}},
issn = {{1367-2630}},
language = {{eng}},
publisher = {{IOP Publishing}},
series = {{New Journal of Physics}},
title = {{Transport and interaction blockade of cold bosonic atoms in a triple-well potential}},
url = {{http://dx.doi.org/10.1088/1367-2630/12/6/065020}},
doi = {{10.1088/1367-2630/12/6/065020}},
volume = {{12}},
year = {{2010}},
}