Towards quantum simulations of biological information flow

@article{Dorner2012TowardsQS,
  title={Towards quantum simulations of biological information flow},
  author={Ross Dorner and John Goold and Vlatko Vedral},
  journal={Interface Focus},
  year={2012},
  volume={2},
  pages={522 - 528}
}
Recent advances in the spectroscopy of biomolecules have highlighted the possibility of quantum coherence playing an active role in biological energy transport. The revelation that quantum coherence can survive in the hot and wet environment of biology has generated a lively debate across both the physics and biology communities. In particular, it remains unclear to what extent non-trivial quantum effects are used in biology and what advantage, if any, they afford. We propose an analogue… 

Figures from this paper

Is Quantum Physics Relevant for Life?

TLDR
The first part explains how thermodynamical insights may be used to derive a characterization of life as a physical phenomenon, and argues that quantum mechanics, according to Per-Olov Lowdin, can lead to an explanation of DNA replication in terms of energy consumption.

Discrete-time quantum simulation of non-Markovian behaviour of transport dynamics in FMO complex

The Fenna-Mathews-Olson (FMO) complex present in green sulphur bacteria are known to medi-ate the transfer of excitation energy between light-harvesting chlorosomes and membrane-embedded bacterial

Engineered dissipation for quantum information science

Quantum information processing relies on precise control of non-classical states in the presence of many uncontrolled environmental degrees of freedom—requiring careful orchestration of how the

Theoretical framework for environment assisted quantum transport and it's application to chemical complexes

Environment assisted quantum transport (ENAQT) has been found to increase efficiency of energy transfer in open quantum systems. Chemical complexes like the photosynthetic Fenna-Mathews-Olson (FMO)

Strategies to simulate dephasing-assisted quantum transport on digital quantum computers

TLDR
The non-unitary dynamics of the open system is obtained through effective representations of the environment, paving the way to digital quantum simulations of quantum transport influenced by structured environments.

Digital quantum simulation framework for energy transport in an open quantum system

TLDR
A theoretical framework for digital quantum simulation of ENAQT is given by introducing new quantum evolution operators and developing the dynamical equation for the operators and proving that it is an analytical solution of the master equation.

Computational Problems Related to Open Quantum Systems

  • C. Wang
  • Computer Science, Physics
  • 2018
TLDR
It is shown that it is impossible for a simple reductionist approach to simulate Lindblad evolution with gate complexity that has linear dependence in evolution time and poly-logarithmic dependence in precision, and a novel variation of the “linear combination of unitaries” construction that pertains to quantum channels is used.

Noise-enhanced quantum transport on a closed loop using quantum walks

TLDR
By using the concept of measurement induced disturbance, this work identifies the regimes in which genuine quantum effects are responsible for the enhanced transport of a quantum state from a closed loop of $$n$$n-sites with one of the sites as a sink.

Experimental demonstration of a measurement-based realisation of a quantum channel

We introduce and experimentally demonstrate a method for realising a quantum channel using the measurement-based model. Using a photonic setup and modifying the basis of single-qubit measurements on

Computational construction of the electronic Hamiltonian for photoinduced electron transfer and Redfield propagation.

TLDR
It is concluded that the FMR approach is suitable as an initial screening tool for identifying long-lived photoinduced charge separated states and that a GMH based Hamiltonian can then be constructed to scrutinize promising candidate molecules.

References

SHOWING 1-10 OF 67 REFERENCES

Environment-assisted quantum walks in photosynthetic energy transfer.

TLDR
A theoretical framework for studying the role of quantum interference effects in energy transfer dynamics of molecular arrays interacting with a thermal bath within the Lindblad formalism is developed and an effective interplay between the free Hamiltonian evolution and the thermal fluctuations in the environment is demonstrated.

Quantum-assisted biomolecular modelling

  • S. HarrisV. Kendon
  • Physics
    Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
  • 2010
TLDR
The current open questions in biomolecular simulation are discussed, how these might be addressed using quantum computation and speculate on the future importance of quantum-assisted biomolecules modelling.

Quantum coherent contributions in biological electron transfer

TLDR
The semi-classical model for biological ET is extended to incorporate both semi- classical and coherent quantum phenomena using a quantum master equation based on the Holstein Hamiltonian, intended as a basis for elucidating the general role of coherent ET in biological ET reactions.

Universal Digital Quantum Simulation with Trapped Ions

TLDR
The digital approach to quantum simulation in a system of trapped ions is demonstrated and evidence that the level of control required for a full-scale device is within reach is provided.

Quantum Simulators

TLDR
An overview of how quantum simulators may become a reality in the near future as the required technologies are now within reach is presented.

A quantum gas microscope for detecting single atoms in a Hubbard-regime optical lattice

TLDR
A quantum gas ‘microscope’ that bridges the two approaches to creating highly controllable quantum information systems, realizing a system in which atoms of a macroscopic ensemble are detected individually and a complete set of degrees of freedom for each of them is determined through preparation and measurement.

Using Quantum Computers for Quantum Simulation

TLDR
The theoretical and experimental development of quantum simulation using quantum computers is surveyed, from the first ideas to the intense research efforts currently underway.

Noise-assisted energy transfer in quantum networks and light-harvesting complexes

We provide physically intuitive mechanisms for the effect of noise on excitation energy transfer (EET) in networks. Using these mechanisms of dephasing-assisted transport (DAT) in a hybrid basis of

Motional effects on the efficiency of excitation transfer

Energy transfer plays a vital role in many natural and technological processes. In this work, we study the effects of mechanical motion on the excitation transfer through a chain of interacting

A critical view on transport and entanglement in models of photosynthesis

TLDR
This paper presents a counter-example to the recent claims of entanglement, showing that the arguments are not sufficiently justified and hence cannot be taken as a proof for the existence of entangling, let alone of its essential role, in the excitation transport.
...