Publication

Exact Quantum Calculation Of Polariton Dispersion In Semiconductor Microcavities

Vincenzo Savona
1995
Journal Articles

Abstract

We develop a general quantum mechanical method to calculate the dispersion relations of polariton modes for a quantum well embedded in a semiconductor planar microcavity. The method is based on the properties of the Green's function;of the electromagnetic field in a one dimensional dielectric structure. By means of this approach it is possible to express the dispersion relations in a compact form once the eigenmodes of the electromagnetic field in the region where the quantum well is placed are known. We discuss the specific example of a microcavity with equal distributed Bragg reflectors at the two ends. The dispersion relation in this case is calculated analytically. The method can in principle be applied to dielectric one dimensional structures of arbitrary dielectric profile.

Official source

https://infoscience.epfl.ch/entities/publication/8bb9f0a7-9625-41ce-ad4b-6d641b3042b8

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Vincenzo Savona
1995
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/8bb9f0a7-9625-41ce-ad4b-6d641b3042b8

About this result

Related concepts (32)

Quantum mechanics

Quantum mechanics is a fundamental theory in physics that provides a description of the physical properties of nature at the scale of atoms and subatomic particles. It is the foundation of all quantum physics including quantum chemistry, quantum field theory, quantum technology, and quantum information science. Classical physics, the collection of theories that existed before the advent of quantum mechanics, describes many aspects of nature at an ordinary (macroscopic) scale, but is not sufficient for describing them at small (atomic and subatomic) scales.

Quantum computing

A quantum computer is a computer that exploits quantum mechanical phenomena. At small scales, physical matter exhibits properties of both particles and waves, and quantum computing leverages this behavior, specifically quantum superposition and entanglement, using specialized hardware that supports the preparation and manipulation of quantum states. Classical physics cannot explain the operation of these quantum devices, and a scalable quantum computer could perform some calculations exponentially faster than any modern "classical" computer.

Electromagnetic field

An electromagnetic field (also EM field or EMF) is a classical (i.e. non-quantum) field produced by moving electric charges. It is the field described by classical electrodynamics (a classical field theory) and is the classical counterpart to the quantized electromagnetic field tensor in quantum electrodynamics (a quantum field theory). The electromagnetic field propagates at the speed of light (in fact, this field can be identified as light) and interacts with charges and currents.

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Exact Quantum Calculation Of Polariton Dispersion In Semiconductor Microcavities

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