Multiple Current Reversals Using Superimposed Driven Lattices
We demonstrate that directed transport of particles in a two dimensional driven lattice can be dynamically reversed multiple times by superimposing additional spatially localized lattices on top of a background lattice. The timescales of such current reversals can be flexibly controlled by adjusting...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-02-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/10/4/1357 |
| _version_ | 1828271724760662016 |
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| author | Aritra K. Mukhopadhyay Peter Schmelcher |
| author_facet | Aritra K. Mukhopadhyay Peter Schmelcher |
| author_sort | Aritra K. Mukhopadhyay |
| collection | DOAJ |
| description | We demonstrate that directed transport of particles in a two dimensional driven lattice can be dynamically reversed multiple times by superimposing additional spatially localized lattices on top of a background lattice. The timescales of such current reversals can be flexibly controlled by adjusting the spatial locations of the superimposed lattices. The key principle behind the current reversals is the conversion of the particle dynamics from chaotic to ballistic, which allow the particles to explore regions of the underlying phase space which are inaccessible otherwise. Our results can be experimentally realized using cold atoms in driven optical lattices and allow for the control of transport of atomic ensembles in such setups. |
| first_indexed | 2024-04-13T05:56:59Z |
| format | Article |
| id | doaj.art-a4a0274d4ea940b0a4b11e470b7bf115 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-04-13T05:56:59Z |
| publishDate | 2020-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-a4a0274d4ea940b0a4b11e470b7bf1152022-12-22T02:59:36ZengMDPI AGApplied Sciences2076-34172020-02-01104135710.3390/app10041357app10041357Multiple Current Reversals Using Superimposed Driven LatticesAritra K. Mukhopadhyay0Peter Schmelcher1Zentrum für Optische Quantentechnologien, Fachbereich Physik, Universität Hamburg, Luruper Chaussee 149, 22761 Hamburg, GermanyZentrum für Optische Quantentechnologien, Fachbereich Physik, Universität Hamburg, Luruper Chaussee 149, 22761 Hamburg, GermanyWe demonstrate that directed transport of particles in a two dimensional driven lattice can be dynamically reversed multiple times by superimposing additional spatially localized lattices on top of a background lattice. The timescales of such current reversals can be flexibly controlled by adjusting the spatial locations of the superimposed lattices. The key principle behind the current reversals is the conversion of the particle dynamics from chaotic to ballistic, which allow the particles to explore regions of the underlying phase space which are inaccessible otherwise. Our results can be experimentally realized using cold atoms in driven optical lattices and allow for the control of transport of atomic ensembles in such setups.https://www.mdpi.com/2076-3417/10/4/1357directed transportcurrent reversaloptical latticecold atomscontrol of chaoschaotic transport |
| spellingShingle | Aritra K. Mukhopadhyay Peter Schmelcher Multiple Current Reversals Using Superimposed Driven Lattices Applied Sciences directed transport current reversal optical lattice cold atoms control of chaos chaotic transport |
| title | Multiple Current Reversals Using Superimposed Driven Lattices |
| title_full | Multiple Current Reversals Using Superimposed Driven Lattices |
| title_fullStr | Multiple Current Reversals Using Superimposed Driven Lattices |
| title_full_unstemmed | Multiple Current Reversals Using Superimposed Driven Lattices |
| title_short | Multiple Current Reversals Using Superimposed Driven Lattices |
| title_sort | multiple current reversals using superimposed driven lattices |
| topic | directed transport current reversal optical lattice cold atoms control of chaos chaotic transport |
| url | https://www.mdpi.com/2076-3417/10/4/1357 |
| work_keys_str_mv | AT aritrakmukhopadhyay multiplecurrentreversalsusingsuperimposeddrivenlattices AT peterschmelcher multiplecurrentreversalsusingsuperimposeddrivenlattices |