Tootfinder

Cooperation, competition and emergence of hierarchy: assembly of active colloids under combined electric and magnetic fields
Indira Barros, Sayanth Ramachandran, Indrani Chakraborty
https://arxiv.org/abs/2509.22552

Cooperation, competition and emergence of hierarchy: assembly of active colloids under combined electric and magnetic fields
Field induced assembly of reconfigurable structures with complex hierarchical configurations has recently become an area of intense research with the promise for exciting applications in programmable self-assembly and nano/microstructure fabrication. While a wide variety of structures, from crystals to glasses, to chains and oligomers have been produced by activating colloidal particles with electric and magnetic fields, a combined approach utilizing the capabilities of multiple field types off…

Topological Photon Transport in Programmable Photonic Processors via Discretized Evolution of Synthetic Magnetic Fields
Andrea Cataldo, Rohan Yadgirkar, Ze-Sheng Xu, Govind Krishna, Ivan Khaymovich, Val Zwiller, Jun Gao, Ali W. Elshaari
https://arxiv.org/abs/2509.13184

Topological Photon Transport in Programmable Photonic Processors via Discretized Evolution of Synthetic Magnetic Fields
Photons, unlike electrons, do not couple directly to magnetic fields, yet synthetic gauge fields can impart magnetic-like responses and enable topological transport. Discretized Floquet evolution provides a controlled route, where the time-ordered sequencing of non-commuting Hamiltonians imprints complex hopping phases and breaks time-reversal symmetry. However, stabilizing such driven dynamics and observing unambiguous topological signatures on a reconfigurable platform has remained challengin…