Quantum Measurement and the Real World

Multimedia · Wed Apr 18 00:00:00 EDT 2012

OSTI ID:1039663

Steinberg, Aephraim M ^[1]

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1. University of Toronto

While quantum measurement remains the central philosophical conundrum of quantum mechanics, it has recently grown into a respectable (read: experimental!) discipline as well. New perspectives on measurement have grown out of new technological possibilities, but also out of attempts to design systems for quantum information processing. I will present several examples of how our current ideas on quantum measurement go far beyond the usual textbook treatments, using examples from our entangled-photon and ultracold-atoms laboratories in Toronto. Topics will be drawn from weak measurement, 'interaction-free' measurement, Hardy's Paradox, measurement-induced quantum logic, and techniques for controlling and characterizing the coherence of quantum systems. The moral of the story will be that there are many different kinds of measurement strategies, with their own advantages and disadvantages; and that some things we have been taught not to even think about can actually be measured in a certain sense.

• Research Organization: FNAL (Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States))
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: AC02-07CH11359
• OSTI ID: 1039663
• Resource Relation: Conference: Fermilab Colloquia, Fermi National Accelerator Laboratory (FNAL), Batvia, Illinois (United States), presented on April 18, 2012
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ATOMS
BLACK HOLES
CRITICALITY
CUPRATES
EXACT SOLUTIONS
HYDRODYNAMICS
NERNST EFFECT
NEUTRONS
PHYSICS
QUANTUM ENTANGLEMENT
QUANTUM INFORMATION
QUANTUM MECHANICS
QUARK MATTER
STARS
SUPERCONDUCTORS
TRANSPORT
UNIVERSE