Diffusiophoresis driven colloidal manipulation and shortcuts to adiabaticity
While compressing a colloidal state by optical means alone has been previously achieved through a specific time-dependence of the trap stiffness, realizing quickly the reverse transformation stumbles upon the necessity of a transiently expulsive trap. To circumvent this difficulty, we propose to dri...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2021-01-01
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| Series: | New Journal of Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/1367-2630/abf799 |
| _version_ | 1827872742234390528 |
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| author | Parvin Bayati Emmanuel Trizac |
| author_facet | Parvin Bayati Emmanuel Trizac |
| author_sort | Parvin Bayati |
| collection | DOAJ |
| description | While compressing a colloidal state by optical means alone has been previously achieved through a specific time-dependence of the trap stiffness, realizing quickly the reverse transformation stumbles upon the necessity of a transiently expulsive trap. To circumvent this difficulty, we propose to drive the colloids by a combination of optical trapping and diffusiophoretic forces, both time-dependent. Forcing via diffusiophoresis is enforced by controlling the salt concentration at the boundary of the domain where the colloids are confined. The method takes advantage of the separation of time scales between salt and colloidal dynamics, and realizes a fast decompression in an optical trap that remains confining at all times. We thereby obtain a so-called shortcut to adiabaticity protocol where colloidal dynamics, enslaved to salt dynamics, can nevertheless be controlled as desired. |
| first_indexed | 2024-03-12T16:28:10Z |
| format | Article |
| id | doaj.art-21f2212858e44705bec593c9699e94a7 |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:28:10Z |
| publishDate | 2021-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-21f2212858e44705bec593c9699e94a72023-08-08T15:37:45ZengIOP PublishingNew Journal of Physics1367-26302021-01-0123606302810.1088/1367-2630/abf799Diffusiophoresis driven colloidal manipulation and shortcuts to adiabaticityParvin Bayati0Emmanuel Trizac1Université Paris-Saclay, CNRS , LPTMS, 91405, Orsay, FranceUniversité Paris-Saclay, CNRS , LPTMS, 91405, Orsay, FranceWhile compressing a colloidal state by optical means alone has been previously achieved through a specific time-dependence of the trap stiffness, realizing quickly the reverse transformation stumbles upon the necessity of a transiently expulsive trap. To circumvent this difficulty, we propose to drive the colloids by a combination of optical trapping and diffusiophoretic forces, both time-dependent. Forcing via diffusiophoresis is enforced by controlling the salt concentration at the boundary of the domain where the colloids are confined. The method takes advantage of the separation of time scales between salt and colloidal dynamics, and realizes a fast decompression in an optical trap that remains confining at all times. We thereby obtain a so-called shortcut to adiabaticity protocol where colloidal dynamics, enslaved to salt dynamics, can nevertheless be controlled as desired.https://doi.org/10.1088/1367-2630/abf799shortcut-to-adiabaticitydiffusiophoresisengineered swift equilibrationharmonic and non-harmonic traps |
| spellingShingle | Parvin Bayati Emmanuel Trizac Diffusiophoresis driven colloidal manipulation and shortcuts to adiabaticity New Journal of Physics shortcut-to-adiabaticity diffusiophoresis engineered swift equilibration harmonic and non-harmonic traps |
| title | Diffusiophoresis driven colloidal manipulation and shortcuts to adiabaticity |
| title_full | Diffusiophoresis driven colloidal manipulation and shortcuts to adiabaticity |
| title_fullStr | Diffusiophoresis driven colloidal manipulation and shortcuts to adiabaticity |
| title_full_unstemmed | Diffusiophoresis driven colloidal manipulation and shortcuts to adiabaticity |
| title_short | Diffusiophoresis driven colloidal manipulation and shortcuts to adiabaticity |
| title_sort | diffusiophoresis driven colloidal manipulation and shortcuts to adiabaticity |
| topic | shortcut-to-adiabaticity diffusiophoresis engineered swift equilibration harmonic and non-harmonic traps |
| url | https://doi.org/10.1088/1367-2630/abf799 |
| work_keys_str_mv | AT parvinbayati diffusiophoresisdrivencolloidalmanipulationandshortcutstoadiabaticity AT emmanueltrizac diffusiophoresisdrivencolloidalmanipulationandshortcutstoadiabaticity |