Collapse and revival of “Schrödinger cat” states

C. E. A. Jarvis, D. A. Rodrigues, B. L. Gyoerffy, T. P. Spiller, A. J. Short, J. F. Annett

Research output: Contribution to journalArticle (Academic Journal)peer-review

8 Citations (Scopus)


We study the dynamics of the Jaynes-Cummings model for two two-level systems (or qubits) interacting with a quantized single mode electromagnetic cavity (or quantum bus), extending this to the macroscopic case of an array of N-q qubits. For an initial cavity coherent state vertical bar alpha > and the qubit system in a specified "basin of attraction" in its Hilbert space, we demonstrate the oscillation of a superposition of two macroscopic quantum states between the qubit system and the field mode. From the perspective of either the qubit or the field system, there is collapse and revival of a "Schrodinger cat" state. (C) 2010 Optical Society of America

Original languageEnglish
Pages (from-to)A164-A169
Number of pages6
JournalJournal of the Optical Society of America B
Issue number6
Publication statusPublished - Jun 2010

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