Research
I'm interested in the qualitative sorts of behaviour that emerge when many quantum mechanical particles interact with one another. Within this broad area of study, I focus mostly on non-equilibrium quantum phenomena, quantum information, and topological phases. A plethora of exotic phases of matter emerge in such settings, some of which may be harnessed for practical purposes. These include superconductors, superfluids, topological phases, localized phases, time crystals, and Floquet SPTs. As a theorist, I spend most of my time developing analytical and numerical tools to better understand these systems.
My most recent preprints tend to indicate what I'm working on right now. My PhD thesis can be found here. A selection of my contributions follow.
Selected publications
Editors' Suggestion: Dissipation-assisted operator evolution method for capturing hydrodynamic transport, Tibor Rakovszky, C. W. von Keyserlingk, and Frank Pollmann, Phys. Rev. B 105, 075131 (2022).
Editors' Suggestion: Sub-ballistic growth of Rényi entropies due to diffusion, Tibor Rakovszky, Frank Pollmann, C. W. von Keyserlingk, Phys. Rev. Lett. 122, 250602 & arXiv:1901.10502.
Diffusive hydrodynamics of out-of-time-ordered correlators with charge conservation, Tibor Rakovszky, Frank Pollmann, C.W. von Keyserlingk, Phys. Rev. X 8, 031058 (2018) & arXiv:1710.09827.
Operator hydrodynamics, OTOCs, and entanglement growth in systems without conservation laws, C.W. von Keyserlingk, T. Rakovszky, F. Pollmann, S. Sondhi, Physical Review X 8 (2), 021013 & arXiv:1705.08910.
Observation of discrete time-crystalline order in a disordered dipolar many-body system, S. Choi et al., Nature 543, 221–225 (08 March 2017) & arXiv:1610.08057.
Absolute Stability and Spatiotemporal Long-Range Order in Floquet systems, C.W. von Keyserlingk, V. Khemani and S. L. Sondhi, Phys. Rev. B 94, 085112 & arXiv:1605.00639.
1D Many-body localized Floquet systems II: Symmetry-Broken phases, C.W. von Keyserlingk & S. L. Sondhi, Phys. Rev. B 93, 245146 & arXiv:1602.06949.
Editors' Suggestion: Phase Structure of 1d Interacting Floquet Systems I: Abelian SPTs, C.W. von Keyserlingk & S. L. Sondhi, Phys. Rev. B 93, 245145 & arXiv:1602.02157.
