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Brown lab members and alumni at QIP 2025

Brown Lab at QIP

Brown Lab members and alumni meet at QIP 2025

Swapnil Patel celebrating his successful thesis defense

Swapnil defends his thesis

Swapnil Patel defends his thesis "Cold Chemistry and Precision Spectroscopy of CaH+ Molecular Ions"

Brown lab members discuss decoders with collaborators from CSIC Madrid

Brown Lab at IARPA ELQ Technical Exchange Meeting

ELQ performers meet to discuss progress towards teleporting qubits in a wide range of systems

a schematic of the code construction from the gauges of the compass model to Clifford deformed subsystem codes

Clifford deformed compass codes

Tuning quantum error correction to biased noise by Clifford deformations and gauge fixing

Rotationally resolved vibrionic spectrum of CaH+ from the X to the A state

Rotationally resolved vibronic spectroscopy of CaH+

High-resolution spectrum of a vibronic transition of CaH+ sympathetically cooled by Ca+

Schematic of the dipole phonon quantum logic setup and initial results in the time domain and by bin frequency

Experimental evidence for dipole phonon quantum logic

Experimental evidence of interaction between molecule dipole and ion trap phonons

Composite image of a circuit for testing stabilizers, a figure showing improvement of stabilizer configuration interaction over Hartree Fock, and a figure showing improvement anddiscard rate from post-selection

Stabilizer Configuration Interaction

Finding molecular subspaces with error-detection properties

Brown lab members Jude Alnas, Aniket Dalvi, Travis Hurant, and Ken Brown at IEEE Quantum Week

Brown Lab at IEEE Quantum Week 2024

Brown lab at IEEE Quantum Week

Collage of poster session at NACTI pictures featuring Brown lab posters

NACTI 2024

Brown Lab participates at the North American Conference on Trapped Ions

transversal cnot between two surface codes

Correlated decoders for transversal CNOTs

Collaboration between Yale and Duke looking at correlated decoders.

NSF's National Quantum Virtual Laboratory is a first-of-its-kind national resource to enable faster discovery and development of use-inspired quantum technologies. Credit: U.S. National Science Foundation

| National Science Foundation

Duke selected to lead a National Quantum Virtual Lab Pilot

Participants at the FTQT2024 workshop on a hike

Fault-Tolerant Quantum Technologies Workshop

Ken and Bohan attend the Fault Tolerant Quantum Technologies Workshop

Eren Guttentag next to Duke Pratt School of Engineering sign in the Duke Quantum Center

Eren Guttentag honored with Outstanding Graduate TA Award

Eren wins the Outstanding TA Award Two Years in a Row!

Brad Bondurant signing a champagne bottle after successfully defending his thesis.

Brad defends his thesis

Brad Bondurant defends his thesis on "Scalable Control Architectures for Quantum Computing"

Example of structured compass codes for quantum error correction

New preprint: Logical coherence in 2D compass codes

Ph.D. student Balint Pato and freshly graduated undergraduate student Will Staples teamed up to explore the effect of coherent noise on families of 2D compass codes.