{"product_id":"decoherence-and-time-resolved-readout-in-georg-m-reuther-9783832528461","title":"Decoherence and Time-Resolved Readout in Superconducting Quantum Circuits (Dekoharenz Und Zeitaufgelosste Quantenmessung in Supraleitenden Schaltkreis","description":"Superconducting quantum circuits are promising candidates for solid-state based quantum computation. However, minimizing dissipation caused by external noise sources remains a tough challenge. Here, we present an analytic dissipative theory for a complex circuit of two resonators coupled via a flux qubit. In this 'quantum switch', the qubit acts as a tunable coupler between the resonators, which enables switching their interaction on and off. A natural application of this setup is to create entangled two-resonator states. However, it turns out that, even if the qubit has no dynamics, qubit dissipation affects the resonators to a considerable degree. For successful quantum information processing, it is desirable to demonstrate the coherence of qubit time evolution in single-shot experiments without too much backaction on the qubit. In the second part of this thesis, we present a novel scheme for a time-resolved single-run measurement of coherent qubit dynamics. For a charge qubit probed by a weak high-frequency signal, we find that the reflected outgoing signal possesses a time-dependent phase shift that is proportional to a qubit observable. A similar approach is presented for a flux qubit coupled to a resonantly driven high-frequency oscillator, which serves as a meter device for monitoring the time-resolved qubit dynamics.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAuthor:\u003c\/b\u003e Georg M. Reuther\u003cbr\u003e\u003cb\u003eISBN-10:\u003c\/b\u003e 3832528466\u003cbr\u003e\u003cb\u003eISBN-13:\u003c\/b\u003e 9783832528461\u003cbr\u003e\u003cb\u003ePublisher:\u003c\/b\u003e Logos Verlag Berlin\u003cbr\u003e\u003cb\u003eLanguage:\u003c\/b\u003e English\u003cbr\u003e\u003cb\u003ePublished:\u003c\/b\u003e 04\/15\/2011\u003cbr\u003e\u003cb\u003ePages:\u003c\/b\u003e 157\u003cbr\u003e\u003cb\u003eFormat:\u003c\/b\u003e Paperback","brand":"Georg M. Reuther","offers":[{"title":"Paperback","offer_id":48450124906751,"sku":"9783832528461","price":53.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/2982\/9887\/files\/img_b5ee623b-a614-4536-9d45-7c3c495a88c5.jpg?v=1777266316","url":"https:\/\/www.whiterainbookhouse.com\/products\/decoherence-and-time-resolved-readout-in-georg-m-reuther-9783832528461","provider":"WR Book House","version":"1.0","type":"link"}