  Long lasting coherence in photosynthetic pigment-protein complexes has been
observed even at physiological temperatures. Experiments have demonstrated
quantum coherent behaviour in the long-time operation of the D-Wave quantum
computer as well. Quantum coherence is the common feature between the two
phenomena. An explanations for eight orders of magnitude discrepancy between
the single flux qubit coherence time and the long-time quantum behaviour of an
array of thousand flux qubits in the quantum computer was suggested within a
theory where the flux qubits are coupled to an environment of particles called
gravonons of high density of states The coherent evolution is in high
dimensional spacetime and can be understood as a solution of Schroedinger's
time-dependent equation.
  Explanations for the quantum beats observed in 2D Fourier transform
electronic spectroscopy of the Fenna-Matthews-Olson (FMO) protein complex in
the green sulfur bacteria are presently sought in constructing transport
theories based on quantum master equations where 'good' molecular vibrations
('coloured noise') in the chlorophyll and the surrounding protein scaffold
knock the exciton oscillations back into coherence. These 'good' vibrations are
claimed to have developed in three billion years of natural selection. These
theories, however, face the discomforting experimental observation that
"attempts to scramble vibrational modes or to shift resonances with isotopic
substitution miserably failed to affect the beating signals". As a possible way
out of this dilemma we adopted the formalism of the quantum computation to the
quantum beats in the FMO protein complex.
