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From Quantum Interference to Entanglement

This presentation by G.S. Agarwal from Oklahoma State University explores the historical significance of light beam interference and its role in shaping wave optics and quantum mechanics. It delves into the emergence of quantum theory through Planck's insights and Dirac's consideration of single-photon interference. Agarwal will review recent advancements in understanding quantum interference for independent particles, challenging conventional beliefs, and will discuss new physical insights and applications that can lead to the entanglement of micro and macro systems.

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From Quantum Interference to Entanglement

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  1. From Quantum Interferenceto Entanglement G.S. Agarwal Oklahoma State University The interference of the beams of light led to the foundations of wave optics and this motivated founding fathers of quantum mechanics to arrive at the wave equation for quantum particles like electrons. With the advent of quantum theory of light by Planck, Dirac pondered over how the interference would arise with single photons as these fundamental entities could not be broken in two parts like light waves. I would review recent progress on the quantum interference of independent particles which is against the common belief. I would describe the new physics here and a number of applications leading to entanglement of micro as well as macro systems.

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