Welcome to the

Minnich Group

Our group focuses on developing detectors based on semiconductor devices and superconducting circuits used in radio astronomy and other scientific applications. We work at the intersection of engineering, materials science, and physics. We are part of a vibrant quantum science and engineering environment at Caltech.


Group News

Latest publications

Anthony submits paper on self-heating of cryogenic HEMT amplifiers and the limits of microwave noise performance.

May 8, 2022


Jin submits paper on experimental realization of a measurement-induced entanglement phase transition on a superconducting quantum processor.

Mar. 8, 2022

Tomi publishes paper on theory of drain noise in high electron mobility transistors based on real-space transfer.

Feb. 28, 2022

Hirst publishes paper on digital quantum simulation of open quantum systems using quantum imaginary time evolution.

Feb. 4, 2022

Peishi submits paper on high-field transport and hot electron noise in GaAs from first principles.

Jan. 28, 2022

Adrian submits paper on realizing symmetry-protected topological phases in a spin-1/2 chain with next-nearest neighbor hopping on superconducting qubits.

Dec. 20, 2021


Anthony successfully defends his thesis!

May 26, 2022

Alex is selected for the 2021 Centennial Prize for the Best Thesis in MCE!

May 24, 2022

Haozhe wins the Best Poster Award at Materials Research Society!

May 12, 2022


Welcome to our new visiting students Elsa and Juhi!

May 11, 2022

David, Haozhe, and Tomi presents talks at Materials Research Society

Mar 10, 2022

Peishi successfully defends his thesis!

Congratulations Dr. Cheng!

Apr 1, 2022

Minnich group presents 5 talks at APS March Meeting. March 14, 2022.

Azmain, Jiayin and Jiace join the group. Welcome to our newest members!

Jan 20, 2022



Answering fundamental questions in physics and cosmology requires continuous improvement of the noise performance of existing detector technologies as well as the development of fundamentally new types of detectors. Our group’s present research focuses on the solid-state physics and transport phenomena that govern the noise performance of various detectors, typically based on semiconductors and superconducting circuits at Caltech.


Low noise transistor microwave amplifiers

We are developing transistor microwave amplifiers used in radio astronomy and other fields that operate near the standard quantum limit of noise. Read more here.


Transport and fluctuation phenomena in semiconductors

We are advancing ab-initio methods to compute high-field transport and fluctuation phenomena in solids without any adjustable parameters. Read more here.


Novel nanofabrication processes

We are developing atomic layer etching (ALE) processes for various dielectrics and metals and applying them to devices such as superconducting microresonators. By careful engineering of the surface region with atomic precision, we will be able to push the performance of detectors towards their intrinsic upper limit. Read more here


Quantum simulation

We are exploring how near-term quantum computers may be used for quantum simulation of physically relevant systems. Read more here


Principal Investigator

Austin J. Minnich

Professor of Mechanical Engineering and Applied Physics


Professional Preparation

BS University of California Berkeley, 2006

MS Massachusetts Institute of Technology, 2008

PhD Massachusetts Institute of Technology, 2011 


Professor, California Institute of Technology, 2017-Present

Assistant Professor, California Institute of Technology, 2011-2017

Click here for a copy of Austin's CV

Current group members

Click here to see our group alumni.



Fall 2022

APh 138b: Quantum Hardware and Techniques

This class covers multiple quantum technology platforms and related theoretical techniques, and will provide students with broad knowledge in quantum science and engineering. It will be split into three-week modules covering: applications of near-term quantum computers, superconducting qubits, trapped atoms and ions, topological quantum matter, solid state quantum bits, tensorproduct states.


P: (626)-395-3385

F: (626)-583-4963

Minnich Lab

1200 E. California Blvd, M.C. 104-44

Pasadena, CA 91125