Group Members

Hartmut Häffner

PI
Office Location: 301H, Old LeConte
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 and a Michelson-Morley test for electrons. When not behind a keyboard, I love being outside such as on playgrounds with my daughters or on the water windsurfing.

Sara Wexler

Administrative Assistant

Wei-Ting Chen

Post-Doc

After working years on using AMO techniques to studying plasma physics with a system which usually contains 10^5 to a million charged particles, I decided to switch my interest to ion trap research which involves only a couple or just one charged particle with a very high degree of control and understanding of the properties of the ion.

Sara Mouradian

Post-Doc

After working with solid state systems during my PhD I am excited to work with trapped ions. Regardless of implementation, I am interested in building and using large coherent quantum systems for computation, communication, and sensing. Outside the lab I am usually climbing, cooking, or eating.

Alberto Alonso

Post-Doc

After working on antimatter spectroscopy with positronium atoms during my PhD, I am now interested in learning more about the extreme fidelity and control that can be attained with ion traps by manipulating single ions at a time, as well as the implications for fundamental physics and technological applications. I also enjoy playing boardgames, hiking, and videogames when I'm not in the lab.

Sumanta Khan

Post-Doc

After working with quantum optics experiments using vapor cells during my PhD, I am really excited to work on quantum information processing experiments using trapped ions. I am working on simulating a quantum system with trapped ions. Outside of the lab, I like roaming around the bay area, travelling, cooking, listening to music and watching TV series.

Joseph Broz

Grad Student

My interests lie in exploring the nontrivial and often nonintuitive dynamics that can arise in modestly sized but very precisely controlled and manipulated atomic systems. Currently I am working on an emulation of non-classical energy transfer in a spin chain coupled to a mesoscopic bosonic bath, which is difficult or impossible to numerically calculate. Outside of the lab I enjoy long walks in the hills with my 10 year old German shepherd, Lia.

Da An (Chi Chi)

Grad Student

I'm a graduate student, excited to learn about the theory and techniques of ion trapping, along with its applications to quantum information. Outside of the lab, I enjoy playing card/board games and eating.

Neil Glikin

Grad Student

I love being able to see the effects of quantum mechanics on a tabletop, as well as just learning and discovering how the universe works. I enjoy exploring the bay area, video games, and making lists.

Nicole Greene

Grad Student

Having previously worked on the local Lorentz invariance experiment, I now spend my time designing an apparatus that will soon shuttle and entangle large chains of ions. Outside the lab I enjoy exploring San Francisco, watching films, and skiing.

Ryan Shaffer

Grad Student

I spent several years programming classical computers before coming to Berkeley to study quantum computers. I'm most interested in the intersection of computer science with quantum information, and how to realize this in physical systems. I also enjoy some human things, like playing basketball, cooking, and traveling.

Qian Yu

Grad Student

I'm interested in the physical realization of quantum computation and techniques of ion trapping, and I like to explore the quantum dynamics of strongly interacting systems including coherent evolution and decoherence. Outside the lab I like traveling, reading, cooking and playing board games.

Shuqi Xu

Grad Student

My research interests lie in tackling challenges towards scalable trapped ion quantum computers, as well as the emergent physics revealed in such quantum system. When not in the lab, I enjoy traveling, playing video games, watching and playing soccer.