{"date_published":"2009-08-17T00:00:00Z","acknowledgement":"This work was supported by SNF Grant No. 200021-111899 and ETHZ. P. J. L. was supported by the EU with a MC-EIF. A. B. was supported by NSERC, CIFAR, and the Alfred P. Sloan Foundation","abstract":[{"text":"We present an ideal realization of the Tavis-Cummings model in the absence of atom number and coupling fluctuations by embedding a discrete number of fully controllable superconducting qubits at fixed positions into a transmission line resonator. Measuring the vacuum Rabi mode splitting with one, two, and three qubits strongly coupled to the cavity field, we explore both bright and dark dressed collective multiqubit states and observe the discrete N scaling of the collective dipole coupling strength. Our experiments demonstrate a novel approach to explore collective states, such as the W state, in a fully globally and locally controllable quantum system. Our scalable approach is interesting for solid-state quantum information processing and for fundamental multiatom quantum optics experiments with fixed atom numbers.","lang":"eng"}],"status":"public","oa":1,"publication_status":"published","publist_id":"5350","type":"journal_article","citation":{"mla":"Fink, Johannes M., et al. “Dressed Collective Qubit States and the Tavis-Cummings Model in Circuit QED.” <i>Physical Review Letters</i>, vol. 103, no. 8, American Physical Society, 2009, doi:<a href=\"https://doi.org/10.1103/PhysRevLett.103.083601\">10.1103/PhysRevLett.103.083601</a>.","ista":"Fink JM, Bianchetti R, Baur M, Göppl M, Steffen L, Filipp S, Leek P, Blais A, Wallraff A. 2009. Dressed collective qubit states and the Tavis-Cummings model in circuit QED. Physical Review Letters. 103(8).","short":"J.M. Fink, R. Bianchetti, M. Baur, M. Göppl, L. Steffen, S. Filipp, P. Leek, A. Blais, A. Wallraff, Physical Review Letters 103 (2009).","ieee":"J. M. Fink <i>et al.</i>, “Dressed collective qubit states and the Tavis-Cummings model in circuit QED,” <i>Physical Review Letters</i>, vol. 103, no. 8. American Physical Society, 2009.","apa":"Fink, J. M., Bianchetti, R., Baur, M., Göppl, M., Steffen, L., Filipp, S., … Wallraff, A. (2009). Dressed collective qubit states and the Tavis-Cummings model in circuit QED. <i>Physical Review Letters</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevLett.103.083601\">https://doi.org/10.1103/PhysRevLett.103.083601</a>","chicago":"Fink, Johannes M, R Bianchetti, Matthias Baur, M Göppl, L. Steffen, Stefan Filipp, Peter Leek, Alexandre Blais, and Andreas Wallraff. “Dressed Collective Qubit States and the Tavis-Cummings Model in Circuit QED.” <i>Physical Review Letters</i>. American Physical Society, 2009. <a href=\"https://doi.org/10.1103/PhysRevLett.103.083601\">https://doi.org/10.1103/PhysRevLett.103.083601</a>.","ama":"Fink JM, Bianchetti R, Baur M, et al. Dressed collective qubit states and the Tavis-Cummings model in circuit QED. <i>Physical Review Letters</i>. 2009;103(8). doi:<a href=\"https://doi.org/10.1103/PhysRevLett.103.083601\">10.1103/PhysRevLett.103.083601</a>"},"publisher":"American Physical Society","month":"08","publication":"Physical Review Letters","main_file_link":[{"url":"http://arxiv.org/abs/0812.2651","open_access":"1"}],"volume":103,"extern":1,"_id":"1769","year":"2009","day":"17","issue":"8","intvolume":"       103","doi":"10.1103/PhysRevLett.103.083601","quality_controlled":0,"date_updated":"2021-01-12T06:53:05Z","date_created":"2018-12-11T11:53:55Z","author":[{"full_name":"Johannes Fink","last_name":"Fink","orcid":"0000-0001-8112-028X","id":"4B591CBA-F248-11E8-B48F-1D18A9856A87","first_name":"Johannes M"},{"full_name":"Bianchetti, R","last_name":"Bianchetti","first_name":"R"},{"first_name":"Matthias","last_name":"Baur","full_name":"Baur, Matthias P"},{"full_name":"Göppl, M","last_name":"Göppl","first_name":"M"},{"first_name":"L.","last_name":"Steffen","full_name":"Steffen, L. Kraig"},{"first_name":"Stefan","last_name":"Filipp","full_name":"Filipp, Stefan"},{"full_name":"Leek, Peter J","last_name":"Leek","first_name":"Peter"},{"last_name":"Blais","first_name":"Alexandre","full_name":"Blais, Alexandre"},{"first_name":"Andreas","last_name":"Wallraff","full_name":"Wallraff, Andreas"}],"title":"Dressed collective qubit states and the Tavis-Cummings model in circuit QED"}