Abstract
In the previous chapter we described various aspects of quantum states of light. Following a historical order we will now explain how to create quantum states of light, including coherent states, squeezed states, a Schrödinger’s cat state, a single-photon state, and a superposition of photon-number states. In the end of this chapter we will explain how to create entanglement.
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Notes
- 1.
We set \(\hat{L}_2 = \frac{1}{2i} \left( \hat{a}_1^{\dagger } \hat{a}_3 - \hat{a}_1 \hat{a}_3^{\dagger } \right) \).
- 2.
It is not normalized. We should only use the ratio between \(\alpha \) and q.
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Furusawa, A. (2015). Creation of Quantum States of Light. In: Quantum States of Light. SpringerBriefs in Mathematical Physics, vol 10. Springer, Tokyo. https://doi.org/10.1007/978-4-431-55960-3_2
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DOI: https://doi.org/10.1007/978-4-431-55960-3_2
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Publisher Name: Springer, Tokyo
Print ISBN: 978-4-431-55958-0
Online ISBN: 978-4-431-55960-3
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