Search Results - "Kalozoumis, P"

Invariants of broken discrete symmetries by Kalozoumis, P A, Morfonios, C, Diakonos, F K, Schmelcher, P

“…The parity and Bloch theorems are generalized to the case of broken global symmetry. Local inversion or translation symmetries in one dimension are shown to…”
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Coherent population oscillations and an effective spin-exchange interaction in a symmetric polariton mixture by Kalozoumis, P. A., Nikolopoulos, G. M., Petrosyan, D.

“…We study a two-species mixture of exciton-polaritons with self- and cross-interaction nonlinearities in a double-well structure, in the presence of relaxation…”
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Invariant currents in lossy acoustic waveguides with complete local symmetry by Kalozoumis, P. A., Richoux, O., Diakonos, F. K., Theocharis, G., Schmelcher, P.

“…We implement the concept of complete local symmetry in lossy acoustic waveguides. Despite the presence of losses, the existence of a spatially invariant…”
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Emitter and absorber assembly for multiple self-dual operation and directional transparency by Kalozoumis, P. A., Morfonios, C. V., Kodaxis, G., Diakonos, F. K., Schmelcher, P.

“…We demonstrate how to systematically design wave scattering systems with simultaneous coherent perfect absorbing and lasing operation at multiple and…”
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Local symmetry dynamics in one-dimensional aperiodic lattices: a numerical study by Morfonios, C., Schmelcher, P., Kalozoumis, P. A., Diakonos, F. K.

“…A unifying description of lattice potentials generated by aperiodic one-dimensional sequences is proposed in terms of their local reflection or parity symmetry…”
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Coherent population oscillations and an effective spin-exchange interaction in a $\mathcal{PT}$ symmetric polariton mixture by Kalozoumis, P. A., Nikolopoulos, G. M., Petrosyan, D.

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Development and Characterization of a Porcine Mitral Valve Scaffold for Tissue Engineering by Granados, M., Morticelli, L., Andriopoulou, S., Kalozoumis, P., Pflaum, M., Iablonskii, P., Glasmacher, B., Harder, M., Hegermann, J., Wrede, C., Tudorache, I., Cebotari, S., Hilfiker, A., Haverich, A., Korossis, Sotirios

“…Decellularized scaffolds represent a promising alternative for mitral valve (MV) replacement. This work developed and characterized a protocol for the…”
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Monte Carlo studies of the square ising model with next-nearest-neighbor interactions by MALAKIS, A, KALOZOUMIS, P, TYRASKIS, N

“…We apply a new entropic scheme to study the critical behavior of the square-lattice Ising model with nearest- and next-nearest-neighbor antiferromagnetic…”
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Topological edge-states of the PT-symmetric Su-Schrieffer-Heeger model: An effective two-state description by Tzortzakakis, A. F, Katsaris, A, Palaiodimopoulos, N. E, Kalozoumis, P. A, Theocharis, G, Diakonos, F. K, Petrosyan, D

“…We consider the non-Hermitian, parity-time (PT) symmetric extensions of the one-dimensional Su-Schrieffer-Heeger (SSH) model in the topological non-trivial…”
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Finite size effects on topological interface states in one-dimensional scattering systems by Kalozoumis, P. A, Theocharis, G, Achilleos, V, Félix, S, Richoux, O, Pagneux, V

“…Phys. Rev. A 98, 023838 (2018) One-dimensional topological edge modes are usually studied considering the interface between two different semi infinite…”
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Open and closed spin chains as multiprocessor wires: optimal engineering and reachability by Palaiodimopoulos, N. E, Brouzos, I, Georgoulea, N, Kalozoumis, P. A, Diakonos, F. K

“…Phys. Rev. A 99, 022331 (2019) We consider the perfect transfer of a state between arbitrary nodes of one-dimensional spin-1/2 chain with optimally engineered…”
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Duality of bounded and scattering wave systems with local symmetries by Kiorpelidis, I, Diakonos, F. K, Theocharis, G, Pagneux, V, Richoux, O, Schmelcher, P, Kalozoumis, P. A

“…Phys. Rev. A 99, 012117 (2019) We investigate the spectral properties of a class of hard-wall bounded systems, described by potentials exhibiting domain-wise…”
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Time-dependent transport through a T-coupled quantum dot by Pavlou, G. E, Palaiodimopoulos, N. E, Kalozoumis, P. A, Sourpis, A, Diakonos, F. K, Karanikas, A. I

“…Pavlou, G.E., Palaiodimopoulos, N.E., Kalozoumis, P.A. et al. Eur. Phys. J. B (2018) 91: 238 We are considering the time-dependent transport through a discrete…”
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Nonlocal discrete continuity and invariant currents in locally symmetric effective Schrödinger arrays by Morfonios, C.V., Kalozoumis, P.A., Diakonos, F.K., Schmelcher, P.

“…We develop a formalism relating nonlocal current continuity to spatial symmetries of subparts in discrete Schrödinger systems. Breaking of such local…”
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Entropic sampling via Wang-Landau random walks in dominant energy subspaces by Malakis, A, Martinos, S S, Hadjiagapiou, I A, Fytas, N G, Kalozoumis, P

“…Dominant energy subspaces of statistical systems are defined with the help of restrictive conditions on various characteristics of the energy distribution,…”
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Systematic pathway to ${\mathcal{PT}}$ symmetry breaking in scattering systems by Kalozoumis, P. A, Pappas, G, Diakonos, F. K, Schmelcher, P

“…Recently [Phys. Rev. Lett. {\bf 106}, 093902 (2011)] it has been shown that $\mathcal{PT}$-symmetric scattering systems with balanced gain and loss, undergo a…”
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{\mathcal{PT}}$ symmetry breaking in waveguide arrays with competing loss/gain pairs by Kalozoumis, P. A, Morfonios, C. V, Diakonos, F. K, Schmelcher, P

“…Phys. Rev. A 93, 063831 (2016) We consider a periodic waveguide array whose unit cell consists of a $\mathcal{PT}$-symmetric quadrimer with two competing…”
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Emitter and absorber assembly for multiple self-dual operation and directional transparency by Kalozoumis, P. A, Morfonios, C. V, Kodaxis, G, Diakonos, F. K, Schmelcher, P

“…Appl. Phys. Lett. 110, 121106 (2017) A recursive scheme for the design of scatterers acting simultaneously as emitters and absorbers, such as lasers and…”
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Impact of grafting and different strains of plant growth promoting rhizobacteria on tomato plants grown hydroponically under combined drought and nutrient stress by Kalozoumis, P., Ntatsi, G., Marakis, G., Simou, E., Tampakaki, A., Savvas, D.

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Invariant currents and scattering off locally symmetric potential landscapes by Kalozoumis, P. A, Morfonios, C, Diakonos, F. K, Schmelcher, P

“…Phys. Rev. B 92, 014303 (2015) We study the effect of discrete symmetry breaking in inhomogeneous scattering media within the framework of generic wave…”
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