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Bare [[7,1,3]] code paper posted to arXiv

In this paper we present a [[7,1,3]] quantum error-correcting code that is able to achieve fault-tolerant syndrome measurement using one ancillary qubit per stabilizer. Our results on this [[7,1,3]] code demonstrates how physically motivated noise models may simplify fault-tolerent protocols.
The paper can be found at arXiv:1702.01155.

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.

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