Group Members

Hartmut Häffner

PI
Office Location: 301H, Physics South
Office Phone: (510) 664-4299
Lab Phone: (510) 664-4296

I like to experiment with the quantum information stored in trapped ions. I lead now a group sharing the same passion. In my previous life, I measured how strong electric fields change the magnetic moment of the electron, studied quantum chaos, ran quantum gates, characterized entangled states, and teleported quantum information over 10 micrometers. Notable current achievements of my group are ultra low-noise ion traps, 3D-printed ion traps, control over a quantum rotor, and trapped elecrons.

Claire Legas

Administrative Assistant

Erhan Saglamyurek

Project Scientist

Neha Yadav

Post-Doc

Qiming Wu

Post-Doc

Ke Sun

Post-Doc

Baiyi Yu

Post-Doc

Kento Taniguchi

Post-Doc

Swapnil Patel

Post-Doc

Ben Saarel

Grad Student

Ryan Tollefsen

Grad Student

Justin Phillips

Grad Student

Izze Sacksteder

Grad Student

I’m Izze and I majored in math and physics at Willamette University in Salem Oregon. I joined the Häffner group to work on the electron trap project and I’m particularly interested in cooling electrons in a Paul trap using a tank circuit. In my free time I like gardening and going to shows to see local Bay Area bands.

Bingran You

Grad Student

Ozgur Sahin

Grad Student

Yu-Lung Tang

Grad Student

Jiarui Liu

Grad Student

I am Jiarui Liu from USTC undergradute class of 2023. I am working on analogue quantum simulation with trapped ion spins and bosons.

Andris Huang

Grad Student

I was a Berkeley undergrad in Physics and CS and I'm continuing my research here working on trapping and controlling electrons using RF electronics. If you are an undergrad student interested in working on trapped electrons, feel free to email me. Note that QCB members will be prioritized :)

Guangqi Gao

Grad Student

I am Guangqi Gao, a PhD student in the Applied Science & Technology program. I received my bachelor's degree in Physics from Peking University in 2024, where I conducted undergraduate research on quantum chaos. Currently, I am working on the QuantNet project in Hartmut’s lab. After completing my undergraduate studies, I decided to pursue engineering-oriented research. Hartmut’s lab is the perfect place for me, as trapped ion systems lie at the intersection of physics and engineering.