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Creation of Macroscopic Superposition States from Arrays of Bose-Einstein Condensates



J A. Dunningham, Karen G. Burnett, R Roth, William D. Phillips


We consider how macroscopic quantum superpositions may be created from arrays of Bose-Einstein condensates. We study a system of three condensates in Fock states, all with the same number of atoms and show that this has the form of a highly entangled superposition of different quasi-momenta. We then show how, by partially releasing these condensates and detecting an interference pattern where they overlap, it is possible to create a macroscopic superposition of different relative phases for the remaining portions of the condensates. We discuss methods for confirming these superpositions.
New Journal of Physics


Bose-Einstein condensates, Bose-Gubbard Hamiltonian, Fock states, optical lattice, quantum


Dunningham, J. , Burnett, K. , Roth, R. and Phillips, W. (2021), Creation of Macroscopic Superposition States from Arrays of Bose-Einstein Condensates, New Journal of Physics (Accessed April 16, 2024)
Created October 12, 2021