Thursday, November 15, 2012

Could "spooky actions at a distance" Hold the Key For Latency Free Communication?

Albert Einstein could not support belief in quantum mechanics because "physics should represent a reality in time and space, free from spooky actions at a distance" (as cited in Greene, 2011, sidebar caption).  The phrase "spooky actions at a distance" has become synonymous with quantum entanglement (Greene, 2011; Moskowitz, 2011), which occurs when two particles are linked despite distance of seperation (Max Planck Institute of Quantum Optics, 2012). Researchers have made significant advances in creating controlled quantum entanglement in the hopes of establishing advanced communication systems (Max Planck Institute of Quantum Optics, 2012). 
Recently efforts have been made to develop entanglement free quantum communication to obtain faster speeds with diminished distances (Chirgwin, 2012; Zyga, 2012).  These advances hold significant potential for the development of advances communications systems. Quantum communication technology is currently being explored for use in generating encryption keys for U.S. Naval submarine communications (Dillow, 2011).


A key virtue of entangled quantum communication is the capability to retain security, as there would only be communication between the two linked nodes.  As this technology matures, the applicability to unmanned aviation will be significant. The control and telemetry links between ground stations would no longer be subject to latency, loss of signal (LOS) due to attentuation or barrier, and external hacking of signal. 

June 2014 Update: It appears this concept and the associated supporting technology has been refined sufficiently by researchers at the TU Delft's Kavli Institute of Nanoscience, who successfully transmitted a single bit across a three meter space in a lab environment (Jeffrey, 2014). If the process is repeatable, scalable, and stable and the footprint of the equipment can be reduced to support portability, the implications of this research to support latency free communications could be revolutionary.

REFERENCES
Chirgwin, R. (2012). Scientists ‘untangle’ quantum communications: Faster without entanglement. The Register. Retrieved from http://www.theregister.co.uk/2012/11/05/untangled_quantum_communications/

Dillow, C. (2011). Quantum scheme could allow submarines to communicate securely. Popsci.comRetrieved from http://www.popsci.com/technology/article/2011-10/quantum-communication-scheme-could-allow-submerged-subs-communicate-securely

Jeffrey, C. (2014, June 3). Scientists teleport quantum information across the room. Gizmag. Retrieved from http://www.gizmag.com/teleport-quantum-information/32352/

Greene, B. (2011). Spooky action at a distance. NOVA. Retrieved from http://www.pbs.org/wgbh/nova/physics/spooky-action-distance.html

Max Planck Institute of Quantum Optics. (2012). Breakthrough in quantum communication. AlphaGalileo Foundation website. Retrieved from http://www.alphagalileo.org/ViewItem.aspx?ItemId=119127&CultureCode=en

Moskowitz, C. (2011). Two diamonds linked by strange quantum entanglement. LiveScience website. Retrieved from http://www.livescience.com/17264-quantum-entanglement-macroscopic-diamonds.html

Zyga, L. (2012). Quantum communication without entanglement could perform faster than previously thought possible. Phys.org. Retrieved from http://phys.org/news/2012-10-quantum-entanglement-faster-previously-thought.html

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