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Can we detect quantum behavior in viruses?

Date:
March 11, 2010
Source:
Institute of Physics
Summary:
Scientists are using the principles of an iconic quantum mechanics thought experiment -- Schrödinger's superpositioned cat -- to test for quantum properties in objects composed of as many as one billion atoms, possibly including the flu virus.

The weird world of quantum mechanics describes the strange, often contradictory, behaviour of small inanimate objects such as atoms. Researchers have now started looking for ways to detect quantum properties in more complex and larger entities, possibly even living organisms.

A German-Spanish research group, split between the Max Planck Institute for Quantum Optics in Garching and the Institute of Photonic Sciences (ICFO), is using the principles of an iconic quantum mechanics thought experiment -- Schrödinger's superpositioned cat -- to test for quantum properties in objects composed of as many as one billion atoms, possibly including the flu virus.

New research published on March 11 in New Journal of Physics describes the construction of an experiment to test for superposition states in these larger objects.

Quantum optics is a field well-rehearsed in the process of detecting quantum properties in single atoms and some small molecules but the scale that these researchers wish to work at is unprecedented.

When physicists try to fathom exactly how the tiniest constituents of matter and energy behave, confusing patterns of their ability to do two things at once (referred to as being in a superposition state), and of their 'spooky' connection (referred to as entanglement) to their physically distant sub-atomic brethren, emerge.

It is the ability of these tiny objects to do two things at once that Oriol Romero-Isart and his co-workers are preparing to probe.

With this new technique, the researchers suggest that viruses are one type of object that could be probed. Albeit speculatively, the researchers hope that their technique might offer a route to experimentally address questions such as the role of life and consciousness in quantum mechanics.

In order to test for superposition states, the experiment involves finely tuning lasers to capture larger objects such as viruses in an 'optical cavity' (a very tiny space), another laser to slow the object down (and put it into what quantum mechanics call a 'ground state') and then adding a photon (the basic element of light) in a specific quantum state to the laser to provoke it into a superposition

The researchers say, "We hope that this system, apart from providing new quantum technology, will allow us to test quantum mechanics at larger scales, by preparing macroscopic superpositions of objects at the nano and micro scale. This could then enable us to use more complex microorganisms, and thus test the quantum superposition principle with living organisms by performing quantum optics experiments with them."


Story Source:

The above story is based on materials provided by Institute of Physics. Note: Materials may be edited for content and length.


Journal Reference:

  1. Oriol Romero-Isart et al. Toward quantum superposition of living organisms. New Journal of Physics, 12 (2010) 033015) DOI: 10.1088/1367-2630/12/3/033015

Cite This Page:

Institute of Physics. "Can we detect quantum behavior in viruses?." ScienceDaily. ScienceDaily, 11 March 2010. <www.sciencedaily.com/releases/2010/03/100311092429.htm>.
Institute of Physics. (2010, March 11). Can we detect quantum behavior in viruses?. ScienceDaily. Retrieved October 22, 2014 from www.sciencedaily.com/releases/2010/03/100311092429.htm
Institute of Physics. "Can we detect quantum behavior in viruses?." ScienceDaily. www.sciencedaily.com/releases/2010/03/100311092429.htm (accessed October 22, 2014).

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