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Category: ATAP

A Scalable, Whole-Chip Method for Analyzing Noise in Quantum Processors

Jan Balewski, Neel Vora, Gang Huang, and Yilun Xu discuss their method for modeling crosstalk in a multi-qubit superconducting quantum processor. (Credit: Matthew Fullmer, Berkeley Lab)

Directional Muon Beam Shows Potential for Advanced Imaging Technique

The Berkeley Lab Laser Accelerator (BELLA) Center (Credit: Thor Swift, Berkeley Lab)

Gabriel Orebi Gann, Jeroen van Tilborg, and Mathis Wiedeking elected 2025 APS Fellows

Gabriel Orebi Gann, Jeroen van Tilborg and Mathis Wiedeking. Credits: Left: AJ Gubser, UC Berkeley. Center: Thor Swift, Berkeley Lab. Right: Robinson Kuntz, Berkeley Lab.

How AI and Automation are Speeding Up Science and Discovery

Kei Nakamura aims a targeting laser at Berkeley Lab Laser Accelerator (BELLA) Center, which uses machine learning models to optimize beams, improvements that have the potential for broader scientific and industrial applications. (Credit: Thor Swift/Berkeley Lab)

Studying Gas Production in REBCO-Based Superconducting Magnets for Future Fusion Reactors

Christopher Reis, a graduate student in ATAP's Superconducting Magnet Program, operates an ion beam scanning electron microscope to study the irradiated microstructures of REBCO-based superconductors. (Credit: Berkeley Lab ATAP Division)

Combining Numerical Simulation Techniques Improves Laser-Plasma Accelerator Modeling

Davide Terzani and Carlo Benedetti from ATAP's BELLA Center discuss how to initialize a time-averaged ponderomotive approximation simulation in a boosted frame. (Credit: Matt Fullmer, Berkeley Lab)

Diagnostic Tool Sheds New Light on Instabilities in High-Power Lasers

Finn Kohrell and Jeroen van Tilborg discuss the laser's optical stretcher, a part of the laser system that controls the separation (stretching) and re-compression of different wavelength components of the laser pulse, which are all crucial for laser amplification and pulse envelope shaping. (Credit: Matthew Fullmer, Berkeley Lab)

A New Method for Measuring Inter-Tape Resistance in Superconducting Cables

Reed Teyber and Chet Spencer work on the experimental setup for measuring inter-tape contact resistance in REBCO-based superconducting cables. (Credit: Matthew Fullmer, Berkeley Lab)

Researchers Make Key Gains in Unlocking the Promise of Compact X-ray Free-Electron Lasers

Jeroen van Tilborg, Sam Barber, and Carl Schroeder lean over the chicane magnets that connect the laser plasma accelerator (behind them) to the downstream undulator. The electron beam excursion in the chicane allows for remnant laser light to be blocked, while also temporally separating electrons of different energies to reduce the sliced energy spread. Credit: Thor Swift/Berkeley Lab

2025 Physical Sciences Area Strategic Plan

2025 Strategic Plan cover image close-up

Tapering In Gas Jets Increases The Efficiency Of 10-GeV Class Laser Plasma Accelerators

(a) Gas jet density measurement setup. The phase offset of the probe beam (∼3 cm diameter) after it passes through the gas plume was measured using a wavefront sensor. (b) Example microscope image of gas jet throat used for width measurements. (c) Raw phase data measured from a representative shot. A 3D model of a small section of the 30 cm elliptical gas jet is shown in (d). Image courtesy of the ATAP Division

The Technologies Fueling the Future of Fusion

Alt text: Two researchers examine a cylindrical component mounted in a testing rig on a workbench in a lab filled with equipment and tools.

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