The quantum world writ large: Using short optical pulses to study macroscopic quantum behavior

(PhysOrg.com) — Einstein infamously dismissed quantum entanglement as spooky action at a distance and quantum uncertainty with his quip that God does not play dice with the universe. Aside from revealing his conceptual prejudices, Einstein’s rejection of these now-established hallmarks of quantum mechanics point to the field’s elusive nature: Coherent quantum mechanical phenomena, such as entanglement and superposition, are not apparent at macroscopic levels of scale.

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The quantum world writ large: Using short optical pulses to study macroscopic quantum behavior