Professor at Princeton University Ph.D., Harvard University, 2005 B.S.E., Electrical Engineering, Princeton University, 2000
Andrew is an associate professor of electrical engineering. His group studies superconducting quantum circuits, focusing on quantum computing and quantum... Read more about Andrew Houck
Ph.D. 2019, Physics, Harvard B.S. 2013, Physics and Applied Math, MIT
Christie is a Princeton Materials Science Postdoctoral Fellow exploring novel lattice geometries to study condensed matter systems with superconducting... Read more about Christie Chiu
Xanthe is a Dicke Fellow originally from Australia. Her current research is focussed on protected superconducting qubits. She completed her PhD at the... Read more about Xanthe Croot
A.B Physics, University of California, Berkeley (2018)
Jake is a third year graduate student from Wilmington NC and completed his bachelors at the University of California, Berkeley majoring in physics. He...
B.S. Physics, University of California, San Diego (2016)
Kevin is a third year graduate student from San Rafael, CA. He received his B.S. in Physics from the University of California, San Diego, and is currently... Read more about Kevin D Crowley
B.Tech in Engineering Physics, Indian Institute of Technology Bombay (2020) M.Tech in Engineering Physics with specialization in Nanoscience, Indian Institute of Technology Bombay (2020)
Parth is a first-year graduate student originating from Mumbai, India. He is currently working on developing architectures that protect qubit from... Read more about Parth Jatakia
Jeronimo is a first year graduate student on the quantum simulation side of the group working on ultrastrong coupling to photonic crystals as well as exploring... Read more about Jeronimo Martinez
Alex is a third year graduate student in the Houck Lab. He builds and studies qubits which are intrinsically insensitive to noise. Alex grew up in Arlington VA... Read more about Alex Place
Anjali is a fourth year graduate student in the Houck Lab. She is from Pittsburgh, PA and she did her undergraduate studies in Applied Physics at Caltech. She... Read more about Anjali Premkumar
Basil joined the Houck Lab in 2017. He works on the quantum simulation side of the group, researching nonlinear physics in high kinetic inductance resonator... Read more about Basil Smitham
Inci is a first year undergraduate student at Princeton University from Istanbul, Turkey. She works on characterizing qubits with embedded qubit control... Read more about Inci Karaaslan
Annie is a senior majoring in Physics. She is currently studying line-graph lattices which are realizable using superconducting circuits to simulate...
Hoang is a sophomore in Electrical Engineering at Princeton with a certificate in Engineering Physics. He explores the surface losses of superconducting qubits... Read more about Hoang Le
Youqi is a sophomore at Princeton University studying Electrical Engineering. Currently, she is working on reducing surface losses and improving the coherence... Read more about Youqi Gang
Connie is a senior studying Physics with a a certificate in Applications of Computing. For her thesis, she is working on designing a more fault-tolerant zero-... Read more about Connie Miao
Harsh is currently a senior at Princeton University, majoring in Electrical Engineering with a focus in Quantum Information, along with certificates in...
Alicia Kollár was a Princeton Materials Science Postdoctoral Fellowship with Andrew Houck from 2017-2019, working on quantum simulation of solid-state physics... Read more about Alicia Kollár
Princeton University, Ph.D. 2016 Budapest University of Technology and Economics, M.Sc., B.Sc. 2010.
Andras has a Ph.D. in Physics from Princeton where he worked in the Yazdani lab working on strongly correlated and topological electronic systems. Currently,... Read more about Andras Gyenis
PhD 2015, Physics, Ecole Fédérale Polytechnique de Lausanne
Berthold received his PhD in physics from the Ecole Fédérale Polytechnique de Lausanne in 2015. He joined the Physics Department at Princeton University as a... Read more about Berthold Jaeck
Darius Sadri was postdoc in our group. He has a PhD from Stanford in string theory, did a postdoc in condensed matter theory, and is now learning to be a... Read more about Darius Sadri
Will E. "Coyote" Shanks was a post-doc in our lab. He earned his PhD at Yale measuring persistent currents in normal metal rings, and is now built a scanning... Read more about Will Shanks
Zhaoqi Leng joined the lab in 2015. He worked on creating and stabilizing entanglement in circuit QED systems. He is researching new optimization/machine... Read more about Zhaoqi Leng
Andrei joined the HouckLab in 2015 after finishing his undergraduate studies at University College London. His work has been focused on engineering photon... Read more about Andrei Vrajitoarea
Master of Science in Physics from Indian Institute of Science (IISc) [2016] Bachelor of Science (Research) in Physics with Distinction from Indian Institute of Science (IISc) [2015]
Pranav hails from Nasik, the wine capital of India, but he does not know his wines. On finding a problem interesting and impactful enough, he does not hesitate... Read more about Pranav Mundada
Ph.D Electrical Engineering, Princeton University (2018) M.S Electrical Engineering, Tsinghua University (2011) B.S Electrical Engineering, Tsinghua University (2008)
Gengyan became a member of the Houck Lab in 2011 after receiving his bachelor's and master's degree from Tsinghua University. Known in the group as the fab... Read more about Gengyan Zhang
Neereja became a member of the lab in the spring of 2013. She studied the ultra-low frequency regime in circuit QED and explored the interactions that arise... Read more about Neereja Sundaresan
Ph.D Electrical Engineering, Princeton University (2019) B.A Physics Middlebury College (2013)
Mattias hails from the great state of Oregon and is a graduate of Middlebury College. He became a member of the lab in 2013 and worked on nonequilibrium phase... Read more about Mattias Fitzpatrick
Ph.D. Princeton University B.S Physics and Mathematics University of Wisconsin- River Falls
Devin Underwood works on arrays of cQED elements for purposes of studying condensed matter physics with photons. He hales from frosty Alaska, and is known for... Read more about Devin Underwood
Srikanth Srinivasan was brave enough to be the first graduate student in the Houck Lab. While he was a graduate student, he worked on both the tunable coupling... Read more about Srikanth Srinivasan
MASt Applied Mathematics ("Part III"), Cambridge University (2020) B.S.H Engineering Physics, Stanford University (2019)
Katherine worked with the Houck group through the QURIP program (joint quantum research program between Princeton and IBM). Her work in the lab included (1)... Read more about Katherine Van Kirk
Ph.D Physics, MIT (2018) B.A Physics, Princeton University (2012)
Cody completed his senior thesis in our group, looking at tunable coupling in 3D cavities. He often sports a snazzy briefcase. He currently works as an AMO... Read more about William Cody Burton
Alexander Pease was a senior in our research group. His senior thesis involved fabricating extremely low frequency cavities to look at strong coupling in a... Read more about Zander Pease
Ph.D Physics, Harvard University (2018) M.A Computer Science, Harvard University (2015) B.S Physics, Princeton University (2012)
Arthur Safira was a senior in his second year in our group, and worked on very large arrays of transmon qubits. He currently works as a hardware and software... Read more about Arthur Safira
The geometric properties of a lattice can have profound consequences on its band spectrum. For example, symmetry constraints and geometric frustration can give rise to topologicially nontrivial and dispersionless bands, respectively. Line-graph lattices are a perfect example of both of these features: Their lowest energy bands are perfectly flat, and here we develop a formalism to connect some of their geometric properties with the presence or absence of fragile topology in their flat bands. This theoretical work will enable experimental studies of fragile topology in several types of line-graph lattices, most naturally suited to superconducting circuits.
We use the quasienergy structure emerging in a periodically driven fluxonium superconducting circuit to encode quantum information with dynamically induced flux-insensitive sweet spots. The framework of Floquet theory provides an intuitive description of these high-coherence working points located away from the half-flux symmetry point of the undriven qubit. This approach offers flexibility in choosing the flux bias point and the energy of the logical qubit states as shown in Huang et al.[arXiv:2004.12458 (2020)]. We characterize the response of the system to noise in the modulation amplitude and dc flux bias, and experimentally demonstrate an optimal working point that is simultaneously insensitive against fluctuations in both. We observe a 40-fold enhancement of the qubit coherence times measured with Ramsey-type interferometry at the dynamical sweet spot compared with static operation at the same bias point.
Protecting superconducting qubits from low-frequency noise is essential for advancing superconducting quan- tum computation. We here introduce a protocol for engineering dynamical sweet spots which reduce the sus- ceptibility of a qubit to low-frequency noise. Based on the application of periodic drives, the location of the dynamical sweet spots can be obtained analytically in the framework of Floquet theory. In particular, for the example of fluxonium biased slightly away from half a flux quantum, we predict an enhancement of pure- dephasing by three orders of magnitude. Employing the Floquet eigenstates as the computational basis, we show that high-fidelity single-qubit gates can be implemented while maintaining dynamical sweet-spot opera- tion. We further confirm that qubit readout can be performed by adiabatically mapping the Floquet states back to the static qubit states, and subsequently applying standard measurement techniques. Our work provides an in- tuitive tool to encode quantum information in robust, time-dependent states, and may be extended to alternative architectures for quantum information processing.
