Phys Chem/Chem Phys Seminar
Investigating quantum speed limits with superconducting qubits
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Abstract - The speed at which quantum entanglement between qubits with short range interactions can be generated is limited by the Lieb-Robinson bound. Introducing longer range interactions relaxes this bound and entanglement can be generated at a faster rate. The speed limit for this has been explicitly found theoretically only for a two-qubit system and under the assumption of negligible single qubit gate time. We seek to demonstrate such a speed limit for entanglement experimentally using two superconducting transmon qubits.
Emerging properties of disordered plasmonic metamaterials
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Abstract: Ordered plasmonic structures have been utilized for a wider range of applications. However, their properties suffer from defects, when large-scale applications are desired. There is growing evidence that the exceptional properties can be produced and tuned in disordered packings with built-in heterogeneities.
Accurate Electronic Structure Calculations for Heavy Elements
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Abstract: The presentation will be focused on the development and application of relativistic
electronic-structure methods aiming to extend accurate quantum chemistry to heavy
Photosynthesis and Photoprotection in Whole Plants and Natural Environments
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Please reach out to chemistry@colorado.edu with any questions.
Visualizing Cryoprotectant Permeation and Location Confined in Plant Cells and Tissues
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Abstract: Look out your window and you might see a conifer tree covered with snow. Ever wonder how the needles stay alive all winter long as the temperature dips below freezing? Like pine trees, some organisms possess molecules that naturally enable them to withstand cold. Scientists have copied nature to develop methodology to cryopreserve biological materials, storing them at low temperatures for future use. The first step in any cryopreservation protocol involves dosing the sample with a cocktail of cryopreservation agents, molecules that help them stay viable.
Molecular Beam Studies of Gas-Surface Interactions in Extreme Aerospace Environments
- Read more about Molecular Beam Studies of Gas-Surface Interactions in Extreme Aerospace Environments
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Please reach out to chemistry@colorado.edu with any questions.
Multilayer Multiconfiguration Time-dependent Hartree Theory
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Please reach out to chemistry@colorado.edu with any questions.
Quantization effects in semiconductor nanostructures and singlet fission in molecular chromophores for photovoltaics and solar fuels
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Abstract: Hot carriers in semiconductors are electrons and/or holes that have energies greater than carriers that reside at the top and bottom of the conduction and valence bands, respectively; the latter carriers are in equilibrium with the lattice and have a temperature equal to the lattice (ambient) temperature. Hot carriers are created in semiconductors upon the absorption of photons with energies greater than the bandgap. The excess energy above the bandgap energy is in the form of kinetic energy.
The Physics Frontiers Centers (PFC) program supports university-based centers and institutes where the collective efforts of a larger group of individuals can enable transformational advances in the most promising research areas. The program is designed to foster major breakthroughs at the intellectual frontiers of physics by providing needed resources such as combinations of talents, skills, disciplines, and/or specialized infrastructure, not usually available to individual investigators or small groups, in an environment in which the collective efforts of the larger group can be shown to be seminal to promoting significant progress in the science and the education of students. PFCs also include creative, substantive activities aimed at enhancing education, broadening participation of traditionally underrepresented groups, and outreach to the scientific community and general public.