Quantum Biology on the Edge of Quantum Chaos

@article{Vattay2014QuantumBO,
  title={Quantum Biology on the Edge of Quantum Chaos},
  author={G{\'a}bor Vattay and Stuart A. Kauffman and Samuli Niiranen},
  journal={PLoS ONE},
  year={2014},
  volume={9}
}
We give a new explanation for why some biological systems can stay quantum coherent for a long time at room temperature, one of the fundamental puzzles of quantum biology. We show that systems with the right level of complexity between chaos and regularity can increase their coherence time by orders of magnitude. Systems near Critical Quantum Chaos or Metal-Insulator Transition (MIT) can have long coherence times and coherent transport at the same time. The new theory tested in a realistic… 

Figures from this paper

Quantum Criticality at the Origin of Life
TLDR
It is shown that molecules taking part in biochemical processes from small molecules to proteins are critical quantum mechanically and the findings point to the existence of a universal mechanism of charge transport in living matter.
A New Ab Initio Approach to the Development of High Temperature Superconducting Materials
We review recent theoretical developments, which suggest that a set of shared principles underpin macroscopic quantum phenomena observed in high temperature superconducting materials, room
Revisiting the Quantum Brain Hypothesis: Toward Quantum (Neuro)biology?
TLDR
Accumulating evidence in non-neuronal systems indicates that biological evolution is able to exploit quantum stochasticity and direct experimental evidence for this is still missing but future research should address the possibility that quantum events contribute to an extremely high complexity, variability and computational power of neuronal dynamics.
Quantum information at the time-reversal symmetry edge of quantum chaos
TLDR
It is argued that quantization of TDFT would allow us to tackle undecidable problems, going "beyond Turing" – i.e., succeed in computing non-recursive functions.
Quantum theory of mass potentials
TLDR
The probabilistic laws governing the microscale machinery, founded on an empirical basis, are presented and computer simulations of particle populations with time dependent transition probabilities reveal that hidden deterministic chaos underlies development of the components of mass potentials.
Quantum Interference and Selectivity through Biological Ion Channels
TLDR
It is suggested that quantum interference can be a solution to explain the selectivity mechanism in ion channels since interference happens between similar ions through the same size of ion channels.
Information, system, complexity, feedbacks, retro-causality: an hypothesis based in the new paradigms of the universe, life, evolution and man
Of all modern Sciences only quantum physics seems to have been obliged to tackle the question of what “is” the reality of matter. It is important to keep in mind, that Kelppner (2002) affirmed that
The Hormesis of Thinking: A Deeper Quantum Thermodynamic Perspective?
TLDR
It is proposed that the process of “thinking”, and managing complex movement, induces “stress” in the neuronal system and is therefore in itself part of maintaining cognitive health and reserve throughout life, and this itself could be explainable by quantum thermodynamics.
The Extended Brain: Cyclic Information Flow in a Quantum Physical Realm
TLDR
The central hypothesis of the present paper is that a versatile and rapid responding brain function requires complementary information processing mechanisms both at the iso-energetic and quantum levels, enabling bottom up and top down information processing.
...
...

References

SHOWING 1-10 OF 74 REFERENCES
Parameter scaling in the decoherent quantum-classical transition for chaotic systems.
TLDR
Results for the quantum Cat Map and Duffing oscillator are reported, showing accurate scaling behavior over a wide parameter range, indicating that this may be used to construct universality classes for this transition to classical evolutions.
Critical quantum chaos
Semiclassical time evolution of the reduced density matrix and dynamically assisted generation of entanglement for bipartite quantum systems.
TLDR
Under general statistical assumptions, and for short-ranged interaction potentials, it is found that P(t) decays exponentially fast in a chaotic environment, whereas it decays only algebraically in a regular system.
Multifractal quantum evolution at a mobility edge
We describe the time evolution of a quantum wavepacket at the Anderson metal-insulator transition using a quasirandom model as an example of a system with a mobility edge. It is demonstrated that the
Long-lived quantum coherence in photosynthetic complexes at physiological temperature
TLDR
Evidence that quantum coherence survives in FMO at physiological temperature for at least 300 fs, long enough to impact biological energy transport is presented, proving that the wave-like energy transfer process discovered at 77 K is directly relevant to biological function.
CHAOS AND LYAPUNOV EXPONENTS IN CLASSICAL AND QUANTAL DISTRIBUTION DYNAMICS
We analytically establish the role of a spectrum of Lyapunov exponents in the evolution of phase-space distributions $\rho(p,q)$. Of particular interest is $\lambda_2$, an exponent which quantifies
Direct evidence of quantum transport in photosynthetic light-harvesting complexes
TLDR
Experimental evidence is provided that interaction between the bacteriochlorophyll chromophores and the protein environment surrounding them not only prolongs quantum coherence, but also spawns reversible, oscillatory energy transfer among excited states.
Quantum coherent biomolecular energy transfer with spatially correlated fluctuations
We show that the quantum coherent transfer of excitations between biomolecular chromophores is strongly influenced by spatial correlations of environmental fluctuations. The latter are due either to
Evidence for wavelike energy transfer through quantum coherence in photosynthetic systems
TLDR
Previous two-dimensional electronic spectroscopy investigations of the FMO bacteriochlorophyll complex are extended, and direct evidence is obtained for remarkably long-lived electronic quantum coherence playing an important part in energy transfer processes within this system is obtained.
...
...