activity
20242026
most citedSpacetime-topological events

1 citations · 1 across the 5 of their papers we have counts for

collaborators

5 papers

physics.optics2026

Quantized Transport of Gap Solitons in the Harper-Hofstadter Model

Oliver Ashfield, Henry Davenport, Tom Sheppard +6

We investigate the dynamics of gap solitons found in the Harper-Hofstadter model with an additional cubic nonlinearity, such as that describing weakly-interacting cold atoms or a K…

physics.optics2026

Temporal Localisation of Waves from Imaginary Line-Gap Topology

Carlos Camacho, Tom Sheppard, Joshua Feis +4

For non-Hermitian Hamiltonians, gain, loss, and non-reciprocity produce complex eigenvalues which, in turn, facilitate different kinds of topological phases. One example is the ima…

physics.optics2026

Disorder-immune momentum band winding topology

Andrea Steinfurth, Sebastian Weidemann, Julia Görsch +4

Time is the odd dimension out: Unlike space, it follows the arrow of time, forbidding back-reflections and requiring momentum yet not energy conservation. Tailored temporal variati…

physics.optics2025

Topological Localisation in Time from PT Symmetry

Tom Sheppard, C. B. B. Camacho, Sebastian Weidemann +4

Time has entered the domain of topological phases in the field of non-Hermitian physics. Previous studies have relied on periodic modulation in time to make an intuitive connection…

physics.optics2024★ 1 cited

Spacetime-topological events

Joshua Feis, Sebastian Weidemann, Tom Sheppard +2

Time is, figuratively and literally, becoming the new dimension for crystalline matter. As such, rapid recent progress on time-varying media gave rise to the notion of temporal and…