*ITAMP Lunch Seminar*
*Speaker:* Uri Vool (Harvard University)
*Date:* Thursday, February 15th
*Time:* 12:00-1:00 pm
Includes Pizza.
*Title: *Artificial atoms in driven superconducting circuits
*Abstract:*
Superconducting circuits are assembled from a quantum electrodynamic
construction set in which the building blocks are linear capacitors and
inductors, as well Josephson tunnel junctions which play the role of
non-linear inductors. The effective quantum system spanned by the lowest
excitations of a superconducting circuit is often called an “artificial
atom”. With the increasing variety and complexity of our circuits, and the
addition of drives and dissipative elements, it may eventually be possible
to “write” an arbitrary Hamiltonian into a circuit.
In this talk I will give a very brief review of the construction and
measurement of artificial atoms using superconducting circuits. I will then
discuss a particular example - a driven-dissipative scheme to engineer an
effective Jaynes-Cummings Hamiltonian between a displaced cavity and a
superconducting qubit in the transverse (\sigma_x) basis, where both
energies and coupling are tunable by drive parameters. Using this scheme, I
will present the first quantum-nondemolition measurement of the qubit in
the transverse basis.
*Location: *B-106 @ Center for Astrophysics (60 Garden Street)
*Directions: *After entering the lobby of the CfA, turn right to enter the
hallway of the B building. In the hallway, turn right again, B-106 will be
at the end of the hallway on the left side.
Show replies by date