The group travels to UIUC to attend the Midwest Cold Atom Workshop (MCAW 2025) on Nov 7-8, 2025. Qihao gives a contributed talk on our recent superradiance experiments.
Alex receives Spira Undergrad Teaching Award
Ruth and Joel Spira Award for Outstanding Undergraduate Teaching
Selected by the Purdue Society of Physics Students (SPS)
https://purduescience.exposure.co/2025-physics-and-astronomy-awards
Santi receives Ramdas Award, congrats!
The Ramdas Award was established in 2018 by Anant K. Ramdas, the Karl Lark-Horovitz Distinguished Professor of Physics and his wife, Vasanti Ramdas. The purpose of the Ramdas Award is to recognize an exceptional senior who has completed a unique project in the Department of Physics and Astronomy.
https://purduescience.exposure.co/2025-physics-and-astronomy-awards
Hebah receives poster award at QSC Summer School
Hebah presented and received the QSC Summer School Poster Award!
The Quantum Science Center (QSC) is a DoE-funded NQI Quantum Center led by the Oak Ridge National Lab, and the QSC Summer School is hosted annually at Purdue.
Botao defended - congrats Dr. Du!
We are at APS Global Summit 2025
Our presentations at APS Global Summit 2025, Anaheim, CA:
Santi Lopez (contributed talk) A Triangular Ladder of Superconducting Qubits for Quantum Simulation
Qihao Guo (contributed talk) Dynamics of Entanglement Stabilization in Driven-dissipative Superconducting Circuit Lattices
Botao Du (contributed talk) Tunneling spectroscopy in superconducting circuit lattices
Ramya Suresh (poster) Exploring Design-Dependent Charge-Noise in Charge-Sensitive Transmons
Hebah Goderya (poster) Exploring three-body interaction in a superconducting circuit quantum simulator
New machine learning-based qubit readout paper on arXiv
End-to-end workflow for machine learning-based qubit readout with QICK and hls4ml https://arxiv.org/abs/2501.14663
Quantum Open House 2024
New coverage and photo gallery
Alex organizes the third iteration of the annual outreach event, and gives the opening talk. Hebah, Qihao, and Santi led the lab tours!
Tunneling spectroscopy paper on arXiv!
https://arxiv.org/abs/2411.07997
Tunneling Spectroscopy in Superconducting Circuit Lattices
Botao Du, Qihao Guo, Santiago López, Ruichao MaWe demonstrate tunneling spectroscopy of synthetic quantum matter in superconducting circuit lattices. We measure site-resolved excitation spectra by coupling the lattice to engineered driven-dissipative particle baths that serve as local tunneling probes. Using incoherent particle source and drain, we independently extract quasi-particle and quasi-hole spectra and reconstruct the spatial structure of collective excitations. We perform spectroscopy of a strongly interacting Bose-Hubbard lattice at different densities, observing changes in energy gaps across the superfluid to Mott-insulator transition and the effects of three-body interactions. Our results provide a new toolset for characterizing many-body states in analog quantum simulators.
Group attends MCAW 2024
The group travels to the Midwest Cold Atom Workshop 2024, University of Michigan, Ann Arbor, and celebrates Wendy’s birthday!
Santi receives Astronaut Scholarship - Congrats!
Congratulation to our undergrad student Santiago Lopez for receiving the prestigious Astronaut Scholarship!
News article: https://www.purdue.edu/niso/news/Astronaut-Scholars.php
Current measurement paper published in PRL
Our current measurement paper is published in PRL!
“Probing Site-Resolved Current in Strongly Interacting Superconducting Circuit Lattices”, Phys. Rev. Lett. 133, 060601 (2024).
News coverage:
https://www.physics.purdue.edu/news/2024/0919_ma_prl.html
Welcome Hebah to the team
Welcome to the team our newest graduate student Hebah Goderya, and congratulations for receiving the Ross Fellowship!
Botao receives Bilsland Dissertation Fellowship, congrats!
Ma Lab at March Meeting 2024
Santi receives award at Purdue Undergrad Research Expo
Congratulations to Santi!
Fall undergrad research expo (2023)
Award for Research Talks
2nd Place: Developing Realistic Quantum Error Correction Models by Santiago Lopez
Mentors: Alex Ruichao Ma; Gabriel Perdue; Botao Du
https://www.purdue.edu/undergrad-research/conferences/fall/archive/past-winners.php
Botao talks at MCAW 2023
The group attended the Midwest Cold Atom Workshop 2023 at the University of Chicago.
Botao Du gave a contributed talk titled “Driven-dissipative dynamics in superconducting circuit lattice coupled to tunable baths”. (https://mcaw2023.event.uchicago.edu/program/)
AFOSR-funded DEPSCoR grant
Alex receives an AFOSR-funded DEPSCoR grant with collaborator and mentor Prof Qi Zhou.
The project is titled “Tailoring Quantum Entanglement in Driven-Dissipative Superconducting Circuits”. This project will develop novel methods to design and create entangled quantum states in superconducting circuits, to enable advanced quantum technologies for computing, emulation and sensing applications.
News Coverage: https://www.purdue.edu/research/features/stories/purdue-gets-depscor-grants-worth-2-4-million-from-defense-department/
Quantum Open House 2023
Alex co-organized the Purdue Quantum Open House 2023, and gave the opening public lecture. Our lab ran lab tours and participated in running the various activities.
This year, over 120 participants from local communities participated in talks, research lab tours, and hands-on demo activities, all focused on introducing Quantum Science and Technology. 60 student volunteers ran the activities (nearly 40 grad students and over 20 undergrads), along with 10+ faculty members / research groups from Physics and Astronomy, Electrical & Computer Engineering, and Chemistry departments.
New Coverage: https://tinyurl.com/PurdueQOH2023
To follow past and future QOH events: https://www.physics.purdue.edu/outreach/quantum_openhouse.html
Wendy receives QSC Poster Award!
Sheng-Wen Wendy Huang received the Best Poster Award at the Quantum Science Center all-hands meeting poster session. Congratulations! Our lab is part of the Oak-Ridge-led, DOE-funded Quantum Science Center.
