Carregant...
Fitxers
Tipus de document
ArticleVersió
Versió publicadaData de publicació
Llicència de publicació
Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/220742
Engineering tunable fractional Shapiro steps in colloidal transport
Títol de la revista
ISSN de la revista
Títol del volum
Resum
Shapiro steps are quantized plateaus in the velocity-force or velocity-torque curve of a driven system, when its speed remains constant despite an increase in the driving force. For microscopic particles driven across a sinusoidal potential, integer Shapiro steps have been observed. By driving a single colloidal particle across a time-modulated, non-sinusoidal periodic optical landscape, we here demonstrate that fractional Shapiro steps emerge in addition to integer ones. Measuring the particle position via individual particle tracking, we reveal the underlying microscopic mechanisms that produce integer and fractional steps and demonstrate how these steps can be controlled by tuning the shape and driving protocol of the optical potential. The flexibility offered by optical engineering allows us to generate a wide range of potential shapes and to study, at the single-particle level, synchronization behavior in driven soft condensed matter systems.
Descripció
Matèries
Matèries (anglès)
Citació
Citació
MAASS, Philipp, STIKUTS, Andris p., MISHRA, Seemant, RYABOV, Artem, TIERNO, Pietro. Engineering tunable fractional Shapiro steps in colloidal transport. _Nature Communications_. 2025. [consulta: 1 de desembre de 2025]. ISSN: 2041-1723. [Disponible a: https://hdl.handle.net/2445/220742]