Date: Friday, September 26th
Time: 12:00-1:30 pm
Pizza will be served.
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, and B-106 is
there.
Speaker: Dr. Archana Kamal, MIT
Title: Nonreciprocal microwave photonics with superconducting quantum
circuits
Abstract:
Superconducting circuits are one of the leading candidates for quantum
information processing. The most common modality for fast and efficient
signal processing with these circuits rely on parametric devices that offer
quantum-limited operation i.e. they add minimum possible noise in
accordance with the constraints imposed by quantum mechanics. Most of the
parametric devices have symmetric scattering properties (a.k.a.
reciprocity) and usually rely on bulky magnetic components to select
preferred direction of signal flows. I will introduce multiple schemes that
allow us to realize nonreciprocal scattering with superconducting
parametric devices, devoid of any magnetic fields. Besides being amenable
to on-chip integration, these offer a platform to explore novel symmetry
breaking mechanisms and study qualitatively new physics generic to
nonlinear frequency mixing systems.
--
Dr. Swati Singh
Institute for Theoretical Atomic, Molecular, and Optical Physics (ITAMP),
Harvard-Smithsonian Center for Astrophysics,
60 Garden Street, MS-14,
Cambridge, MA 02138
Show replies by date