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
Alex is a fifth 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 fifth 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
Ph.D Electrical Engineering, Princeton University (2016) M.A Electrical Engineering, Caltech (2018) B.S.E Electrical Engineering, Princeton University (2006)
ames Raftery is a second year graduate student. He was a Princeton undergraduate, went to work for a few years, but just could not stay away. He returned to... Read more about James Raftery
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
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
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
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
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
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. 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
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
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
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
The origin of many quantum-material phenomena is intimately related to the presence of flat electronic bands. In quantum simulation, such bands have been realized through line-graph lattices, a class of lattices known to exhibit flat bands. Based on that work, we conduct a high-throughput screening for line-graph lattices among the crystalline structures of the Materials Flatband Database and report on new candidates for line-graph materials and lattice models. In particular, we find materials with line-graph-lattice structures beyond the two most commonly known examples, the kagomé and pyrochlore lattices. We also identify materials which may exhibit flat topological bands. Finally, we examine the various line-graph lattices detected and highlight those with gapped flat bands and those most frequently represented among this set of materials. With the identification of real stoichiometric materials and theoretical lattice geometries, the results of this work may inform future studies of flat-band many-body physics in both condensed matter experiment and theory.
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.
