Results 11 to 20 of about 472,402 (297)

Controlled information transfer in continuous-time chiral quantum walks

open access: yesNew Journal of Physics, 2021
In this paper we investigate properties of continuous time chiral quantum walks, which possess complex valued edge weights in the underlying graph structure, together with an initial Gaussian wavefunction spread over a number of vertices.
A Khalique, A Sett, J B Wang, J Twamley
doaj   +1 more source

Perfect absorption in complex scattering systems with or without hidden symmetries

open access: yesNature Communications, 2020
In the past, implementations of coherent perfect absorption relied on systems with symmetric conditions. Here, the authors demonstrate coherent perfect absorption in complex microwave scattering settings without requiring such symmetries.
Lei Chen   +2 more
doaj   +1 more source

Enhancing quantum transport in a photonic network using controllable decoherence [PDF]

open access: yes, 2015
Transport phenomena on a quantum scale appear in a variety of systems, ranging from photosynthetic complexes to engineered quantum devices. It has been predicted that the efficiency of quantum transport can be enhanced through dynamic interaction between
Biggerstaff, Devon N.   +9 more
core   +3 more sources

Quantum Transport Enhancement by Time-Reversal Symmetry Breaking [PDF]

open access: yes, 2013
Quantum mechanics still provides new unexpected effects when considering the transport of energy and information. Models of continuous time quantum walks, which implicitly use time-reversal symmetric Hamiltonians, have been intensely used to investigate ...
Biamonte, Jacob   +5 more
core   +2 more sources

Noise-induced quantum transport [PDF]

open access: yesPhysical Review E, 2005
We analyze the problem of directed quantum transport induced by external exponentially correlated telegraphic noise. In addition to quantum nature of the heat bath, nonlinearity of the periodic system potential brings in quantum contribution. We observe that quantization, in general, enhances classical current at low temperature, while the differences ...
Ghosh, Pulak Kumar   +2 more
openaire   +3 more sources

Transport through Quantum Melts [PDF]

open access: yesPhysical Review Letters, 1998
We discuss superconductor to insulator and quantum Hall transitions which are first order in the clean limit. Disorder creates a nearly percolating network of the minority phase. Electrical transport is dominated by tunneling or activation through the saddle point junctions, whose typical resistance is calculated as a function of magnetic field. In the
Shimshoni, Efrat   +2 more
openaire   +2 more sources

Phonon chirality tuned through interface transmission in a one-dimensional atomic junction model

open access: yesNew Journal of Physics, 2018
There has been growing interest in revealing exotic properties of chiral phonons since they were found in honeycomb AB lattice, and very recently they were experimentally verified in a tungsten diselenide monolayer (2018 Science 359 579).
Jiaojiao Wang   +4 more
doaj   +1 more source

Non-Abelian Quantum Transport and Thermosqueezing Effects

open access: yesPRX Quantum, 2022
Modern quantum experiments provide examples of transport with noncommuting quantities, offering a tool to understand the interplay between thermal and quantum effects.
Gonzalo Manzano   +2 more
doaj   +1 more source

Experimental realization of an ideal Floquet disordered system [PDF]

open access: yes, 2018
The atomic Quantum Kicked Rotor is an outstanding "quantum simulator" for the exploration of transport in disordered quantum systems. Here we study experimentally the phase-shifted quantum kicked rotor, which we show to display properties close to an ...
Chicireanu, Radu   +7 more
core   +2 more sources

Noise-Assisted Discord-Like Correlations in Light-Harvesting Photosynthetic Complexes

open access: yesQuantum Reports, 2021
Transport phenomena in photosynthetic systems have attracted a great deal of attention due to their potential role in devising novel photovoltaic materials.
Pablo Reséndiz-Vázquez   +2 more
doaj   +1 more source

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