Dynamical resistivity of a few interacting fermions to the time-dependent potential barrier
We study the dynamical response of a harmonically trapped two-component few-fermion mixture to the external Gaussian potential barrier moving across the system. The simultaneous role played by inter-particle interactions, rapidity of the barrier, and the fermionic statistics is explored for systems...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IOP Publishing
2021-01-01
|
| Series: | New Journal of Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/1367-2630/abee41 |
| _version_ | 1797750198184706048 |
|---|---|
| author | Dillip K Nandy Tomasz Sowiński |
| author_facet | Dillip K Nandy Tomasz Sowiński |
| author_sort | Dillip K Nandy |
| collection | DOAJ |
| description | We study the dynamical response of a harmonically trapped two-component few-fermion mixture to the external Gaussian potential barrier moving across the system. The simultaneous role played by inter-particle interactions, rapidity of the barrier, and the fermionic statistics is explored for systems containing up to four particles. The response is quantified in terms of the temporal fidelity of the time-evolved state and the amount of quantum correlations between components being dynamically generated. Results are also supported by analysis of the single-particle densities and temporal number of occupied many-body eigenstates. In this way, we show that the dynamical properties of the system crucially depend on non-trivial mutual relations between temporal many-body eigenstates, and in consequence, they lead to volatility of the dynamics. Counterintuitively, imbalanced systems manifest much higher resistivity and stability than their balanced counterparts. |
| first_indexed | 2024-03-12T16:29:14Z |
| format | Article |
| id | doaj.art-297009227e9a4f10b9c3a353bf670f93 |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:29:14Z |
| publishDate | 2021-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-297009227e9a4f10b9c3a353bf670f932023-08-08T15:32:41ZengIOP PublishingNew Journal of Physics1367-26302021-01-0123404301910.1088/1367-2630/abee41Dynamical resistivity of a few interacting fermions to the time-dependent potential barrierDillip K Nandy0https://orcid.org/0000-0002-1667-4347Tomasz Sowiński1https://orcid.org/0000-0002-7970-4371Institute of Physics , Polish Academy of Sciences Aleja Lotników 32/46, PL-02668 Warsaw, PolandInstitute of Physics , Polish Academy of Sciences Aleja Lotników 32/46, PL-02668 Warsaw, PolandWe study the dynamical response of a harmonically trapped two-component few-fermion mixture to the external Gaussian potential barrier moving across the system. The simultaneous role played by inter-particle interactions, rapidity of the barrier, and the fermionic statistics is explored for systems containing up to four particles. The response is quantified in terms of the temporal fidelity of the time-evolved state and the amount of quantum correlations between components being dynamically generated. Results are also supported by analysis of the single-particle densities and temporal number of occupied many-body eigenstates. In this way, we show that the dynamical properties of the system crucially depend on non-trivial mutual relations between temporal many-body eigenstates, and in consequence, they lead to volatility of the dynamics. Counterintuitively, imbalanced systems manifest much higher resistivity and stability than their balanced counterparts.https://doi.org/10.1088/1367-2630/abee41few-body systemultra-cold fermionsexternal drivingdynamical properties |
| spellingShingle | Dillip K Nandy Tomasz Sowiński Dynamical resistivity of a few interacting fermions to the time-dependent potential barrier New Journal of Physics few-body system ultra-cold fermions external driving dynamical properties |
| title | Dynamical resistivity of a few interacting fermions to the time-dependent potential barrier |
| title_full | Dynamical resistivity of a few interacting fermions to the time-dependent potential barrier |
| title_fullStr | Dynamical resistivity of a few interacting fermions to the time-dependent potential barrier |
| title_full_unstemmed | Dynamical resistivity of a few interacting fermions to the time-dependent potential barrier |
| title_short | Dynamical resistivity of a few interacting fermions to the time-dependent potential barrier |
| title_sort | dynamical resistivity of a few interacting fermions to the time dependent potential barrier |
| topic | few-body system ultra-cold fermions external driving dynamical properties |
| url | https://doi.org/10.1088/1367-2630/abee41 |
| work_keys_str_mv | AT dillipknandy dynamicalresistivityofafewinteractingfermionstothetimedependentpotentialbarrier AT tomaszsowinski dynamicalresistivityofafewinteractingfermionstothetimedependentpotentialbarrier |