Abstract
This chapter gives the mathematical background necessary for understanding quantum mechanics used in the rest of the book. The abstract concept of a qubit as the quantum extension of a classical bit is first introduced. Characteristics of photons are then covered to lay the foundation for the multi-photon communication. An exposition of the polarization degree of freedom of photons in the multi-photon regime is made.
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Verma, P.K., El Rifai, M., Chan, K.W.C. (2019). Mathematical Background. In: Multi-photon Quantum Secure Communication. Signals and Communication Technology. Springer, Singapore. https://doi.org/10.1007/978-981-10-8618-2_2
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DOI: https://doi.org/10.1007/978-981-10-8618-2_2
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