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Theory is being developed and used to devise methods for preserving and exploiting the quantum behavior of ever-larger systems for metrology, communication, and
The quantum optics of light interacting with semiconductor-based nanostructures is being studied to extend concepts of entanglement and coherence in atomic
Using single-photon detection and an adaptive measurement strategy, we determine the state of an optical pulse with errors below what is possible with even the
The main long-term goals of our theoretical research group are to understand and control large interacting quantum systems, as well as to design and create new
Using a detector capable telling how many photons were received, we explored the potential for enhanced measurement resolution in two measurement applications.
We use light created two photons at a time to explore the time needed to cross a barrier. The extreme simultaneity of creation of the two photons allows for
We develop and learn how to characterize non-classical light sources and single-photon detectors. To have an accurate model of a single-photon detector’s
If quantum computers and networks are ever to be realized, they likely will be made of different types of parts that will need to share information with one