Demonstrating a Driven Reset Protocol of a Superconducting Qubit

Autor:	Geerlings, K., Leghtas, Z., Pop, I. M., Shankar, S., Frunzio, L., Schoelkopf, R. J., Mirrahimi, M., Devoret, M. H.
Rok vydání:	2012
Předmět:	Condensed Matter - Mesoscale and Nanoscale Physics Quantum Physics
Zdroj:	Phys. Rev. Lett. 110, 120501 (2013)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevLett.110.120501
Popis:	Qubit reset is crucial at the start of and during quantum information algorithms. We present the experimental demonstration of a practical method to force qubits into their ground state, based on driving certain qubit and cavity transitions. Our protocol, called the double drive reset of population is tested on a superconducting transmon qubit in a three-dimensional cavity. Using a new method for measuring population, we show that we can prepare the ground state with a fidelity of at least 99.5 % in less than 3 microseconds; faster times and higher fidelity are predicted upon parameter optimization. Comment: 5 pages, 4 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1211.0491 Zobrazit plný text záznamu View this record from Arxiv