This is just too cool not to spread around. And since the article mentions solar cells, I think it's marginally eligible for inclusion here.
The Spooky World Of Quantum BiologyQuantum computation, a science still in its infancy, promises swiftness and efficiency vastly superior to anything possible with conventional silicon chips. Rather than relying on binary bits like contemporary systems, quantum computers use “qubits” that include all possible superpositions of a particle’s classical state. Instead of being “trapped” in a single configuration, the logic gates of a quantum computer employ multiple possibilities in synchrony -- using the entire set of alternative outcomes to arrive at an answer.
It’s a promising avenue for people with big plans for strong AI or virtual reality. The only complication is that coherence -- in which the many possible states of a particle or group of particles stay hung in superposition -- is something scientists have only been able to study under extremely controlled conditions. It’s only possible when that system doesn’t interact with anything else that might “collapse the wave function,” and so most of the major options for quantum computing involve impractical scenarios like creating a supercooled vacuum.
This is one of the reasons that many scientists have considered quantum biology both unlikely and unscientific. The thermal noise of biological systems seemed too great to allow for quantum weirdness; and even if it could, how on Earth would we study it? But science is the story of ingenuity’s victory over shortsightedness -- and one research team, led by Gregory S. Engel at UC Berkeley, has devised a way to directly detect and observe quantum-level processes within a cell using high-speed lasers.
They were trying to establish exactly how organic photosynthesis approaches 95% efficiency, whereas the most sophisticated human solar cells operate at only half that. What they discovered is nothing short of remarkable. Using femtosecond lasers to follow the movement of light energy through a photosynthetic bacterial cell, Engel et al. observed the energy traveling along every possible direction at the same time. Instead of following a single trajectory like the electrons on a silicon chip,
the energy in photosynthesis explores all of its options and collapses the quantum process only after the fact, retroactively “deciding” upon the most efficient pathway. (My emphasis)More at the link. To quote J.B.S. Haldane, "The Universe is not only queerer than we suppose, but queerer than we
can suppose."