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Errors and pseudothresholds for incoherent and coherent noise published in Physical Review A

 

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.  Congratulations to Mauricio, Conor, Livia, and Smitha!

Rene Rugango defends PhD thesis


Rene successfully defends his thesis Spectroscopy of molecular ions in Coulomb crystals.  Congratulations Rene!
 
Rene's thesis builds off his three publications listed below:
 
Trapping and sympathetic cooling of Boron ions, R. Rugango, M. Sinhal, G. Shu, and K. R. Brown, arXiv:1609.09521 (2016)

CaH+ vibronic spectra paper accepted in ChemPhysChem

 


Our paper on Vibronic spectroscopy of sympathetically cooled CaH+ has been accepted at ChemPhysChem. We have measured for the first time the X-A transition in CaH+ and observed four vibronic transitions using dissociation of CaH+ in a Coulomb crystal.

Brown Lab at MOLSPEC


Aaron Calvin presented our latest results on CaH+ spectroscopy at the 71st International Symposium on Molecular Spectroscopy. 

Brown Lab at DAMOP

Wednesday, May 25

Kisra Egodapitiya will describe our hybrid Ca+ ion and K MOT experiment. (K1.107)

Thursday, May 26

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 https://arxiv.org/abs/1605.03604.
 

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.

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