New schemes for creating large optical Schrödinger cat states using strong laser fields

J. Rivera-Dean*, P. Stammer, E. Pisanty, Th Lamprou, P. Tzallas, M. Lewenstein, M. F. Ciappina

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

10 Scopus citations


Recently, using conditioning approaches on the high-harmonic generation process induced by intense laser-atom interactions, we have developed a new method for the generation of optical Schrödinger cat states (Lewenstein et al. in Nat Phys, 17 1104–1108, 2021. https://doi/10.1038/s41567-021-01317-w). These quantum optical states have been proven to be very manageable as, by modifying the conditions under which harmonics are generated, one can interplay between kitten and genuine cat states. Here, we demonstrate that this method can also be used for the development of new schemes towards the creation of optical Schrödinger cat states, consisting of the superposition of three distinct coherent states. Apart from the interest these kind of states have on their own, we additionally propose a scheme for using them towards the generation of large cat states involving the sum of two different coherent states. The quantum properties of the obtained superpositions aim to significantly increase the applicability of optical Schrödinger cat states for quantum technology and quantum information processing.

Original languageEnglish
Pages (from-to)2111-2123
Number of pages13
JournalJournal of Computational Electronics
Issue number6
StatePublished - Dec 2021


  • High-harmonic generation
  • Schrödinger cat states
  • Strong-field physics
  • Wigner functions


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