Abstract:
:We introduce a setup which realises a tunable engineered environment for experiments in circuit quantum electrodynamics. We illustrate this concept with the specific example of a quantum bit, qubit, in a high-quality-factor cavity which is capacitively coupled to another cavity including a resistor. The temperature of the resistor, which acts as the dissipative environment, can be controlled in a well defined manner in order to provide a hot or cold environment for the qubit, as desired. Furthermore, introducing superconducting quantum interference devices (SQUIDs) into the cavity containing the resistor, provides control of the coupling strength between this artificial environment and the qubit. We demonstrate that our scheme allows us to couple strongly to the environment enabling rapid initialization of the system, and by subsequent tuning of the magnetic flux of the SQUIDs we may greatly reduce the resistor-qubit coupling, allowing the qubit to evolve unhindered.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Jones PJ,Huhtamäki JA,Salmilehto J,Tan KY,Möttönen Mdoi
10.1038/srep01987subject
Has Abstractpub_date
2013-01-01 00:00:00pages
1987issn
2045-2322pii
srep01987journal_volume
3pub_type
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