Zobrazeno 1 - 10
of 2 598
pro vyhledávání: '"Schomerus H"'
Publikováno v:
Phys. Rev. B 105, 144202 (2022)
We utilize the concept of a measurement-induced entanglement transition to analyze the interplay and competition of processes that generate and destroy entanglement in a one-dimensional quantum spin chain evolving under a locally noisy and disordered
Externí odkaz:
http://arxiv.org/abs/2107.11354
Effect of photonic spin-orbit coupling on the topological edge modes of a Su-Schrieffer-Heeger chain
Autor:
Whittaker, C. E., Cancellieri, E., Walker, P. M., Royall, B., Rodriguez, L. E. Tapia, Clarke, E., Whittaker, D. M., Schomerus, H., Skolnick, M. S., Krizhanovskii, D. N.
Publikováno v:
Phys. Rev. B 99, 081402 (2019)
We study the effect of photonic spin-orbit coupling (SOC) in micropillar lattices on the topological edge states of a one-dimensional chain with a zigzag geometry, corresponding to the Su-Schrieffer-Heeger model equipped with an additional internal d
Externí odkaz:
http://arxiv.org/abs/1812.02034
Autor:
Cancellieri, E., Schomerus, H.
Publikováno v:
Phys. Rev. A 99, 033801 (2019)
A main objective of topological photonics is the design of disorder-resilient optical devices. Many prospective applications would benefit from nonlinear effects, which not only are naturally present in real systems but also are needed for switching
Externí odkaz:
http://arxiv.org/abs/1811.09542
Autor:
Whittaker, C. E., Cancellieri, E., Walker, P. M., Gulevich, D. R., Schomerus, H., Vaitiekus, D., Royall, B., Whittaker, D. M., Clarke, E., Iorsh, I. V., Shelykh, I. A., Skolnick, M. S., Krizhanovskii, D. N.
Publikováno v:
Phys. Rev. Lett. 120, 097401 (2018)
We study exciton-polaritons in a two-dimensional Lieb lattice of micropillars. The energy spectrum of the system features two flat bands formed from $S$ and $P_{x,y}$ photonic orbitals, into which we trigger bosonic condensation under high power exci
Externí odkaz:
http://arxiv.org/abs/1705.03006
Publikováno v:
Phys. Rev. B 95, 165109 (2017)
We describe a versatile mechanism that provides tight-binding models with an enriched, topologically nontrivial bandstructure. The mechanism is algebraic in nature, and leads to tight-binding models that can be interpreted as a non-trivial square roo
Externí odkaz:
http://arxiv.org/abs/1702.07648
Isotropic Brownian motions over complex fields as a solvable model for May-Wigner stability analysis
Autor:
Ipsen, J. R., Schomerus, H.
Publikováno v:
J. Phys. A 49 (2016) 385201
We consider matrix-valued stochastic processes known as isotropic Brownian motions, and show that these can be solved exactly over complex fields. While these processes appear in a variety of questions in mathematical physics, our main motivation is
Externí odkaz:
http://arxiv.org/abs/1602.06364
Publikováno v:
Physica E 77, 54-64 (2016)
We calculate the joint distribution $P(S,Q)$ of the scattering matrix $S$ and time-delay matrix $Q=-i\hbar S^\dagger dS/dE$ of a chaotic quantum dot coupled by point contacts to metal electrodes. While $S$ and $Q$ are statistically independent for ba
Externí odkaz:
http://arxiv.org/abs/1506.05995
Publikováno v:
Phys. Rev. A 92, 043407 (2015)
We perform a detailed analysis of how the interplay between the residual binding potential and a strong laser field influences above-threshold ionization (ATI), employing a semi-analytical, Coulomb-corrected strong-field approximation (SFA) in which
Externí odkaz:
http://arxiv.org/abs/1506.03646
Publikováno v:
Phys. Rev. Lett. 114, 166803 (2015)
In many of the experimental systems that may host Majorana zero modes, a so-called chiral symmetry exists that protects overlapping zero modes from splitting up. This symmetry is operative in a superconducting nanowire that is narrower than the spin-
Externí odkaz:
http://arxiv.org/abs/1412.3998
Publikováno v:
Nat. Commun. 6:6710 (2015)
The recent realization of topological phases in insulators and superconductors has advanced the quest for robust quantum technologies. The prospects to implement the underlying topological features controllably has given incentive to explore optical
Externí odkaz:
http://arxiv.org/abs/1407.3703