29 citations · 79 across the 6 of their papers we have counts for
10 papers
Trapping potentials and quantum gates for microwave-dressed Rydberg atoms on an atom chip
Iason Tsiamis, Georgios Doultsinos, Andreas F. Tzortzakakis +5
Rydberg atoms in dc electric fields acquire static dipole moments. When the atoms are close to a surface producing an inhomogeneous electric field, such as by the adsorbates on an…
Qubit Analog with Polariton Superfluid in an Annular Trap
J. Barrat, A. F. Tzortzakakis, M. Niu +4
We report on the experimental realization and characterization of a qubit analog with semiconductor exciton-polaritons. In our system, a condensate of exciton-polaritons is confine…
Thermal transitions in a one-dimensional, finite-size Ising model
Varazdat Stepanyan, Andreas F. Tzortzakakis, David Petrosyan +1
We revisit the one-dimensional ferromagnetic Ising spin-chain with a finite number of spins and periodic boundaries and derive analytically and verify numerically its various stati…
Topological edge-states of the PT-symmetric Su-Schrieffer-Heeger model: An effective two-state description
A. F. Tzortzakakis, A. Katsaris, N. E. Palaiodimopoulos +4
We consider the non-Hermitian, parity-time (PT) symmetric extensions of the one-dimensional Su-Schrieffer-Heeger (SSH) model in the topological non-trivial configuration. We study…
Microscopic dynamics and an effective Landau-Zener transition in the quasi-adiabatic preparation of spatially ordered states of Rydberg excitations
A. F. Tzortzakakis, D. Petrosyan, M. Fleischhauer +1
We examine the adiabatic preparation of spatially-ordered Rydberg excitations of atoms in finite one-dimensional lattices by frequency-chirped laser pulses, as realized in a number…
Ultralong temporal coherence in optically trapped exciton-polariton condensates
K. Orfanakis, A. F. Tzortzakakis, D. Petrosyan +2
We investigate an optically trapped exciton-polariton condensate and observe temporal coherence beyond 1~ns duration. Due to the reduction of the spatial overlap with the thermal r…