Errors and pseudothresholds for incoherent and coherent noise posted to the arXiv

In this paper, we study the distinctive effects that incoherent and coherent errors have on an encoded qubit.  We use the effective 1-qubit process matrix at the logical level to understand the fundamental differences between these kinds of errors.  The paper can be found at

Experimental implementation of Bernstein-Vazirani algorithm posted to the arXiv

The Quantum Systems Group at GTRI have demonstrated the Bernstein-Vazirani algorithm in a surface electrode trap.  The Brown lab provided theoretical support for the project. The paper is now posted on the arXiv.

Brown Lab at March Meeting

Schedule of Brown lab presentations below the fold.

Aaron Calvin passes PhD candidacy exam

Aaron passes OP!
Aaron Calvin advances to candidacy. Congratulations to Aaron!

Co-designing an ion trap quantum computer

New paper posted to the arXiv with Chris Monroe and Jungsang Kim on applications and designs of ion trap quantum computers.

Mauricio Gutierrez defends his thesis

Mauricio Gutierrez successfully defends his thesis Accurate Modeling of Noise in Quantum Error-Correcting Circuits. Congratulations to Mau!

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