68 citations · 211 across the 12 of their papers we have counts for
12 papers
Collective purification of interacting quantum networks beyond symmetry constraints
Saikat Sur, Pritam Chattopadhyay, Arnab Chakrabarti +5
Following any quantum information processing protocol, it is essential to reset a mixed state of a many-body interacting spin-network to the computational-zero pure state. This tas…
DisQu: Investigating the Impact of Disorder in Quantum Generative Models
Yannick Werner, Jasmin Frkatovic, Vitor Fortes Rey +5
Disordered Quantum many-body Systems (DQS) and Quantum Neural Networks (QNN) have many structural features in common. However, a DQS is essentially an initialized QNN with random w…
Chiral quantum router with Rydberg atoms
Nikolaos E. Palaiodimopoulos, Simon Ohler, Michael Fleischhauer +1
We exploit controlled breaking of time-reversal symmetry to realize coherent routing of quantum information in spin networks. The key component of our scheme is a spin triangle who…
Quantum inspired image augmentation applicable to waveguides and optical image transfer via Anderson Localization
Nikolaos E. Palaiodimopoulos, Vitor Fortes Rey, Matthias Tschöpe +3
We present a quantum inspired image augmentation protocol which is applicable to classical images and, in principle, due to its known quantum formulation applicable to quantum syst…
Excitation transfer in disordered spin chains with long-range exchange interactions
Nikolaos E. Palaiodimopoulos, Maximilian Kiefer-Emmanouilidis, Gershon Kurizki +1
We examine spin excitation or polarization transfer via long-range interacting spin chains with diagonal and off-diagonal disorder. To this end, we determine the mean localization…
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…
Latent symmetry induced degeneracies
M. Röntgen, M. Pyzh, C. V. Morfonios +3
Degeneracies in the energy spectra of physical systems are commonly considered to be either of accidental character or induced by symmetries of the Hamiltonian. We develop an appro…
Fast and robust quantum state transfer via a topological chain
N. E. Palaiodimopoulos, I. Brouzos, F. K. Diakonos +1
We propose a fast and robust quantum state transfer protocol employing a Su-Schrieffer-Heeger chain, where the interchain couplings vary in time. Based on simple considerations aro…
Designing pretty good state transfer via isospectral reductions
M. Röntgen, N. E. Palaiodimopoulos, C. V. Morfonios +4
We present an algorithm to design networks that feature pretty good state transfer (PGST), which is of interest for high-fidelity transfer of information in quantum computing. Real…
Open and closed spin chains as multiprocessor wires: optimal engineering and reachability
N. E. Palaiodimopoulos, I. Brouzos, N. Georgoulea +2
We consider the perfect transfer of a state between arbitrary nodes of one-dimensional spin-1/2 chain with optimally engineered couplings. Motivated by the fact that such a system…
Time-dependent transport through a T-coupled quantum dot
G. E. Pavlou, N. E. Palaiodimopoulos, P. A. Kalozoumis +3
We are considering the time-dependent transport through a discrete system, consiting of a quantum dot T-coupled to an infinite tight-binding chain. The periodic driving that is ind…
Local symmetries and perfect transmission in aperiodic photonic multilayers
P. A. Kalozoumis, C. Morfonios, N. Palaiodimopoulos +2
We develop a classification of perfectly transmitting resonances occuring in effectively one-dimensional optical media which are decomposable into locally reflection symmetric part…