University of Illinois at Urbana-Champaign

Welcome to the

Kwiat Quantum Information Group

in the Department of Physics in Engineering & LAS at Illinois

About us

We are a quantum information research group in the physics department at the University of Illinois at Urbana-Champaign.

Our research interests include:

  • Fundamental studies of quantum mechanics
  • Optical quantum information resources including single-photon sources, single-photon detectors, sources of entanglement, quantum random number generators, and adaptive optics
  • Applications such as quantum key distribution, quantum state and process tomography, quantum state creation and remote preparation, hyperentanglement-enhanced quantum communication, quantum-enhanced precision measurements, and quantum memory
  • The interaction of quantum states of light with biological systems, including the human visual system

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Looking for our guide to quantum state tomography? »


Engineering photon pairs for quantum information

"Engineering of near-IR photon pairs to be factorable in space-time and entangled in polarization." K. Zielnicki et al. in Optics Express (PDF available on our Publications page). We demonstrate a source that produces pure heralded single photons and polarization-entangled pairs without unwanted spectral correlations.

Student featured by NSF for Women's History Month

Fourth-year graduate student and NSF Graduate Research Fellow Rebecca Holmes was featured in a social media series on women in science for Women's History Month.

Student awarded NDSEG graduate fellowship

Second-year graduate student Alex Hill received a three-year National Defense Science & Engineering Graduate Fellowship from the Department of Defense.

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