Enhancing coherent transport in a photonic network using controllable decoherence

@article{Biggerstaff2015EnhancingCT,
  title={Enhancing coherent transport in a photonic network using controllable decoherence},
  author={Devon N. Biggerstaff and Ren'e Heilmann and Aidan A Zecevik and Markus Gr{\"a}fe and Matthew A. Broome and Alessandro Fedrizzi and Stefan Nolte and Alexander Szameit and Andrew G. White and Ivan Kassal},
  journal={Nature Communications},
  year={2015},
  volume={7}
}
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 coherent transport can be enhanced through dynamic interaction between the system and a noisy environment. We report an experimental simulation of environment-assisted coherent transport, using an engineered network of laser-written waveguides, with relative energies and inter-waveguide couplings tailored to… 

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References

SHOWING 1-10 OF 61 REFERENCES

Novel collective effects in integrated photonics

Abstract Superradiance, the enhanced collective emission of energy from a coherent ensemble of quantum systems, has been typically studied in atomic ensembles. In this work we study theoretically the

Environment-assisted quantum transport in ordered systems

Noise-assisted transport in quantum systems occurs when quantum time evolution and decoherence conspire to produce a transport efficiency that is higher than what would be seen in either the purely

Quantum‐optical analogies using photonic structures

Engineered photonic waveguides have provided in the past decade an extremely rich laboratory tool to visualize with optical waves the classic analogues of a wide variety of coherent quantum phenomena

Two-photon quantum walks in an elliptical direct-write waveguide array

Integrated optics provides an ideal testbed for the emulation of quantum systems via continuous-time quantum walks. Here, we study the evolution of two-photon states in an elliptic array of

Discrete optics in femtosecond-laser-written photonic structures

Over the last few years arrays of evanescently coupled waveguides have been brought into focus as a particular representation of functionalized optical materials, in which the dispersion and

Environment-assisted quantum transport

Transport phenomena at the nanoscale are of interest due to the presence of both quantum and classical behavior. In this work, we demonstrate that quantum transport efficiency can be enhanced by a

Laser written waveguide photonic quantum circuits.

Directional couplers are characterized--the key functional elements of photonic quantum circuits--and it is found that they perform as well as lithographically produced waveguide devices.

Quantum walks in synthetic gauge fields with 3D integrated photonics

There is great interest in designing photonic devices capable of disorder-resistant transport and information processing. In this work we propose to exploit three-dimensional integrated photonic

Vibration-enhanced quantum transport

In this paper, we study the role of collective vibrational motion in the phenomenon of electronic energy transfer (EET) along a chain of coupled electronic dipoles with varying excitation

Quantum walks of correlated photon pairs in two-dimensional waveguide arrays.

This work demonstrates quantum walks of correlated photons in a two-dimensional network of directly laser written waveguides coupled in a "swiss cross" arrangement, showing strong correlation and independence of the quantum walkers between and within the planes of the cross.
...