118 citations · 218 across the 20 of their papers we have counts for
20 papers
Mass generation in graphs
Ioannis Kleftogiannis, Ilias Amanatidis
We demonstrate a mechanism for the production of massive excitations in graphs. We treat the number of neighbors at each vertex in the graph (degree) as a scalar field. Then we int…
The principle of least action for random graphs
Ioannis Kleftogiannis, Ilias Amanatidis
We study the statistical properties of the physical action for random graphs, by treating the number of neighbors at each vertex of the graph (degree), as a scalar field. For e…
Quantum chaos, localization and phase transitions in random graphs
Ioannis Kleftogiannis, Ilias Amanatidis
The energy level statistics of uniform random graphs are studied, by treating the graphs as random tight-binding lattices. The inherent random geometry of the graphs and their dyna…
From quantum to classical via crystallization
Ioannis Kleftogiannis, Ilias Amanatidis
We show that classical states can emerge as pure ground state solutions of a quantum many-body system. We use a simple Hubbard model in 1D with strong short-range interactions and…
Violation of Bell's inequalities in uniform random graphs
Ioannis Kleftogiannis, Ilias Amanatidis
We demonstrate that quantum correlations can emerge from the statistical correlations of random discrete models, without an a priori assumption that the random models are quantum m…
Emergent spacetime from purely random structures
Ioannis Kleftogiannis, Ilias Amanatidis
We examine the fundamental question whether a random discrete structure with the minimal number of restrictions can converge to continuous metric space. We study the geometrical pr…
Energetical self-organization of a few strongly interacting particles
Ioannis Kleftogiannis, Ilias Amanatidis
We study the quantum self-organization of a few interacting particles with strong short-range interactions. The physical system is modeled via a 2D Hubbard square lattice model, wi…
Robust non-integer conductance in disordered 2D Dirac semimetals
Ilias Amanatidis, Ioannis Kleftogiannis
We study the conductance of 2D Dirac semimetal nanowires at the presence of disorder. For an even nanowire length determined by the number of unit cells, we find non-intege…
Physics in non-fixed spatial dimensions via random networks
Ioannis Kleftogiannis, Ilias Amanatidis
We study the quantum statistical electronic properties of random networks which inherently lack a fixed spatial dimension. We use tools like the density of states (DOS) and the inv…
Fractional-quantum-Hall-effect (FQHE) in 1D Hubbard models
Ioannis Kleftogiannis, Ilias Amanatidis
We study the quantum self-organization of interacting particles in one-dimensional(1D) many-body systems, modeled via Hubbard chains with short-range interactions between the parti…
Self-organization in many-body systems with short-range interactions: clustering, correlations and topology
Ioannis Kleftogiannis, Ilias Amanatidis
We investigate the self-organization of point-particles with short-range interactions modeled via simple 1D and 2D Hubbard-like models. We show how various properties emerge such a…
Exact results for the entanglement in 1D Hubbard models with spatial constraints
Ioannis Kleftogiannis, Ilias Amanatidis, Vladislav Popkov
We investigate the entanglement in Hubbard models of hardcore bosons in , with an additional hardcore interaction on nearest neighbouring sites. We derive analytical formulas f…
Topological self-organization of strongly interacting particles
Ioannis Kleftogiannis, Ilias Amanatidis
We investigate the self-organization of strongly interacting particles confined in 1D and 2D. We consider hardcore bosons in spinless Hubbard lattice models with short-range intera…
Coherent wave transmission in quasi-one-dimensional systems with Lévy disorder
Ilias Amanatidis, Ioannis Kleftogiannis, Fernando Falceto +1
We study the random fluctuations of the transmission in disordered quasi-one-dimensional systems such as disordered waveguides and/or quantum wires whose random configurations of d…
Entanglement and edge effects in superpositions of many-body Fock states with spatial constraints
Ioannis Kleftogiannis, Ilias Amanatidis
We investigate how entangled states can be created by considering collections of point-particles arranged at different spatial configurations, i.e., Fock states with spatial constr…
Geometrical spin manipulation in Dirac flakes
Ioannis Kleftogiannis, Ilias Amanatidis
We investigate numerically the spin properties of electrons in flakes made of materials described by the Dirac equation, at the presence of intrinsic spin-orbit-coupling(SOC). We s…
Conductance through disordered graphene nanoribbons: Standard and anomalous electron localization
Ioannis Kleftogiannis, Ilias Amanatidis, Victor A. Gopar
Conductance fluctuations produced by the presence of disorder in zigzag and armchair graphene nanoribbons are studied. We show that quantum transport in zigzag nanoribbons takes pl…
Edge states versus diffusion in disordered graphene flakes
Ioannis Kleftogiannis, Ilias Amanatidis
We study the localization properties of the wavefunctions in graphene flakes with short range disorder, via the numerical calculation of the Inverse Participation Ratio() and…
Conductance of 1D quantum wires with anomalous electron-wavefunction localization
Ilias Amanatidis, Ioannis Kleftogiannis, Fernando Falceto +1
We study the statistics of the conductance through one-dimensional disordered systems where electron wavefunctions decay spatially as for , …
Carbon Nanotube Electron Windmills: A Novel Design for Nanomotors
S W D Bailey, I Amanatidis, C J Lambert
We propose a new drive mechanism for carbon nanotube (CNT) motors, based upon the torque generated by a flux of electrons passing through a chiral nanotube. The structure of intere…