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This chapter discusses single-mode photon states, number statesNumber states, vacuum stateVacuum state, coherent statesCoherent states, and superposition states. Expectation value and varianceVariance of electric field in these states is discussed. Coherent state is expressed in terms of number statesNumber states and the probability of detecting a certain number of photons in the coherent stateCoherent state is presented. Also presented are diagrammatic representation of different quantum states.

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Single-Mode Photon States

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  • 发表日期：

    2025年

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  • Krishna Thyagarajan

摘要

This chapter discusses single-mode photon states, number statesNumber states, vacuum stateVacuum state, coherent statesCoherent states, and superposition states. Expectation value and varianceVariance of electric field in these states is discussed. Coherent state is expressed in terms of number statesNumber states and the probability of detecting a certain number of photons in the coherent stateCoherent state is presented. Also presented are diagrammatic representation of different quantum states.