We show how a special class of Schr\"odinger macroscopic quantum-superposition states can be produced by a coherent field propagating through a Kerr medium. We show that these states are eigenstates of the mth power of the photon-annihilation operator leading also to the possibility of producing these using multiphoton Jaynes-Cummings systems. We further show how superpositions of squeezed coherent states can be produced.

Physical Review AJun 1, 1993134 citations

Generation of pair coherent state using weak cross-Kerr media

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Springer proceedings in physics

Production of Superposition of Coherent States Using Kerr Non Linearity

Shivani A. Kumar, Hari Prakash, Naresh Chandra, R. Prakash

Published Jan 1, 2020• 2 citations

Publisher

DOI: 10.1007/978-981-15-8625-5_13

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(F>0.99)

. In contrast to all previous schemes to generate such a state, our scheme does not need photon number resolving measurements nor Kerr-type nonlinear interactions. Furthermore, it is robust to detection inefficiency and exhibits some resilience to photon production inefficiency.