Time-rescaled quantum dynamics as a shortcut to adiabaticity
The design of quantum control methods has been shown to greatly improve the performance of many evolving quantum technologies. To this end, the usage of adiabatic dynamics to drive quantum systems is seriously limited by the action of environment-induced noise and decoherence. In this spirit, fast q...
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| Format: | Article |
| Language: | English |
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American Physical Society
2020-02-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.2.013133 |
| _version_ | 1797211531142758400 |
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| author | Bertúlio de Lima Bernardo |
| author_facet | Bertúlio de Lima Bernardo |
| author_sort | Bertúlio de Lima Bernardo |
| collection | DOAJ |
| description | The design of quantum control methods has been shown to greatly improve the performance of many evolving quantum technologies. To this end, the usage of adiabatic dynamics to drive quantum systems is seriously limited by the action of environment-induced noise and decoherence. In this spirit, fast quantum processes known as shortcuts to adiabaticity have been developed as alternatives to adiabatic protocols with a myriad of potential applications. Here, we develop a new state-independent mechanism to speed up the evolution of an arbitrary quantum dynamical system by simply rescaling the time of a reference driving process, an approach which can also work as a shortcut to adiabaticity. Our findings are illustrated for three systems, namely, the parametric oscillator, the transport of a particle in a harmonic trap, and the spin-1/2 in a magnetic field. |
| first_indexed | 2024-04-24T10:27:58Z |
| format | Article |
| id | doaj.art-5c6a6e020d654d128ba39e7258499280 |
| institution | Directory Open Access Journal |
| issn | 2643-1564 |
| language | English |
| last_indexed | 2024-04-24T10:27:58Z |
| publishDate | 2020-02-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj.art-5c6a6e020d654d128ba39e72584992802024-04-12T16:49:37ZengAmerican Physical SocietyPhysical Review Research2643-15642020-02-012101313310.1103/PhysRevResearch.2.013133Time-rescaled quantum dynamics as a shortcut to adiabaticityBertúlio de Lima BernardoThe design of quantum control methods has been shown to greatly improve the performance of many evolving quantum technologies. To this end, the usage of adiabatic dynamics to drive quantum systems is seriously limited by the action of environment-induced noise and decoherence. In this spirit, fast quantum processes known as shortcuts to adiabaticity have been developed as alternatives to adiabatic protocols with a myriad of potential applications. Here, we develop a new state-independent mechanism to speed up the evolution of an arbitrary quantum dynamical system by simply rescaling the time of a reference driving process, an approach which can also work as a shortcut to adiabaticity. Our findings are illustrated for three systems, namely, the parametric oscillator, the transport of a particle in a harmonic trap, and the spin-1/2 in a magnetic field.http://doi.org/10.1103/PhysRevResearch.2.013133 |
| spellingShingle | Bertúlio de Lima Bernardo Time-rescaled quantum dynamics as a shortcut to adiabaticity Physical Review Research |
| title | Time-rescaled quantum dynamics as a shortcut to adiabaticity |
| title_full | Time-rescaled quantum dynamics as a shortcut to adiabaticity |
| title_fullStr | Time-rescaled quantum dynamics as a shortcut to adiabaticity |
| title_full_unstemmed | Time-rescaled quantum dynamics as a shortcut to adiabaticity |
| title_short | Time-rescaled quantum dynamics as a shortcut to adiabaticity |
| title_sort | time rescaled quantum dynamics as a shortcut to adiabaticity |
| url | http://doi.org/10.1103/PhysRevResearch.2.013133 |
| work_keys_str_mv | AT bertuliodelimabernardo timerescaledquantumdynamicsasashortcuttoadiabaticity |