Paper on Heating and Transport through a Y Junction Posted to the arXiv

Gang Shu et al. present their work on Heating and ion transport in a Y-junction surface-electrode trap arXiv:1403.4874. The trap and initial transport voltage waveforms were provided by Sandia. The waveforms used to achieve 74 quanta per roundtrip through the junction were designed by GTRI.

Study of composite pulses and time-dependent noise posted on arXiv

Chingiz Kabytayev et al. post their paper on Robustness of composite pulses to time-dependent control noise to the arXiv. The work was a collaboration between the Brown lab, Lorenza Viola's group at Dartmouth, and Michael Biercuk's group at the University of Sydney.

Pictured: Chingiz (center) explains the key result to Pradeep and Yu.

MUSIQC architecture paper published in Phys. Rev. A

Chris Monroe et al. published an analysis of a modular quantum computing architecture in Phys. Rev. A . The paper was a collaboration between the Brown lab and other members of the MUSIQC project. A synopsis of the paper is available at

Yu defends PhD

Yu Tomita successfully defended her PhD in Computational Science and Engineering. Her thesis is titled "Numerical and Analytical Studies of Quantum Error Correction."

Congratulations Yu!

Transformed composite pulse sequence paper posted to the ArXiv

True Merrill et al. describe the theoretical development and experimental demonstration of transformed composite pulse sequences for qubit addressing. Download the paper here. The work is a collaboration between the Brown lab and the QIS group at GTRI.

John and Karl at SERMACS 2013

Karl Burkhardt and John Gray both presented at the South East Regional Meeting of the American Chemical Society .

Karl gave a talk on Towards quantum information in a cryogenic ion trap.
John presented a poster on Progress towards sideband cooling of atomic ion - molecular ion Coulomb crystals.

Colin Trout wins Outstanding TA award

Colin Trout wins Outstanding Chemistry TA Award for his work as a TA in Prof. Christine Payne's Spring 2013 Physical Chemistry II class. Congratulations Colin!

JP Addison awarded Spring 2014 PURA

JP Addison was awarded a 2014 President's Undergraduate Research Award to work on Optimized Smooth Pulses for Ion Trap Quantum Computers. Congratulations JP!

Dave Wineland visits the lab

2012 Nobel prize winner Dave Wineland discusses experiments with Rene, JB, and Rick.

Microwave paper published in New Journal of Physics

Our paper with collaborators at GTRI, Spatially uniform single-qubit gate operations with near-field microwaves and compensating pulses is now published in New Journal of Physics.

Trivia: First ion trap paper with both KR Brown's as authors.

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