Weak and continuous measurements in superconducting circuits
APA
Dressel, J. (2016). Weak and continuous measurements in superconducting circuits. Perimeter Institute. https://pirsa.org/16060040
MLA
Dressel, Justin. Weak and continuous measurements in superconducting circuits. Perimeter Institute, Jun. 20, 2016, https://pirsa.org/16060040
BibTex
@misc{ pirsa_PIRSA:16060040, doi = {10.48660/16060040}, url = {https://pirsa.org/16060040}, author = {Dressel, Justin}, keywords = {Quantum Foundations}, language = {en}, title = {Weak and continuous measurements in superconducting circuits}, publisher = {Perimeter Institute}, year = {2016}, month = {jun}, note = {PIRSA:16060040 see, \url{https://pirsa.org}} }
Chapman University
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Abstract
Superconducting circuit technology has rapidly developed over the past several years to become a leading contender for realizing a scalable quantum computer. Modern circuit designs are based on the transmon qubit, which coherently superposes macroscopic charge oscillations. Measurements of a transmon are fundamentally weak and continuous in time, with projective measurements emerging only after a finite duration. Adding gates, such measurements may then implement ancilla-based measurements of controllable strength. Recent experiments have used both types of weak measurement to great effect: for monitoring qubit evolution, and for showing violations of a hybrid Bell-Leggett-Garg inequality.