A5091349267- Quantum Information and Cryptography
- Experimental Learning in Engineering
- Quantum Mechanics and Applications
- Cold Atom Physics and Bose-Einstein Condensates
- Innovative Teaching Methods
- Quantum many-body systems
- Science Education and Pedagogy
- Digital Holography and Microscopy
- Optical Coherence Tomography Applications
- Educational Strategies and Epistemologies
- Theoretical and Computational Physics
- Quantum Computing Algorithms and Architecture
- Random lasers and scattering media
- Semiconductor Quantum Structures and Devices
- Educational Leadership and Innovation
- Neural Networks and Reservoir Computing
- Film in Education and Therapy
- Various Chemistry Research Topics
- Mobile Learning in Education
- Photonic and Optical Devices
- Photonic Crystals and Applications
- Quantum chaos and dynamical systems
- Radio, Podcasts, and Digital Media
- Opinion Dynamics and Social Influence
- Biomedical and Engineering Education
University of Colorado System
2024-2025
University of Colorado Boulder
2021-2024
National Institute of Standards and Technology
2021-2024
Stanford University
2015-2021
Austrian Academy of Sciences
2014
University of Vienna
2014
Vienna Center for Quantum Science and Technology
2014
Williams College
2013
We report on the realization of long-range Ising interactions in a cold gas cesium atoms by Rydberg dressing. The are enhanced coupling to states vicinity F\"{o}rster resonance. characterize measuring mean-field shift clock transition via Ramsey spectroscopy, observing one-axis twisting dynamics. furthermore emulate transverse-field model periodic application microwave field and detect dynamical signatures paramagnetic-ferromagnetic phase transition. Our results highlight power optical...
As quantum technologies transition out of the research lab and into commercial applications, it becomes important to better prepare students enter this new evolving workforce. To work toward goal preparing physics for a career in industry, senior capstone course called “Quantum Forge” was created at University Colorado Boulder. This aims provide with hands-on experience them workforce directly after their undergraduate studies. Some course’s goals are have understand what comprises industry...
We explore a model of the world based on real-vector-space quantum theory. In our familiar complex phase appearing in states is replaced by single binary object that we call ubit, which not localized and can interact with any world. Ordinary complex-vector-space theory be recovered from this if simply impose certain restriction sets allowed measurements transformations (Stueckelberg's rule), but paper try to obtain standard theory, or close approximation it, without invoking such...
The 2020–2021 academic year was a unique time for many instructors who had to adapt their courses be conducted remotely due the COVID-19 pandemic. This especially challenging physics lab courses, which usually emphasize hands-on experiments. Although have now returned in-person teaching, possibility remains of future disasters necessitating similar remote courses. It is important understand how undergraduate students experienced during pandemic, including what aspects contributed positive...
As quantum technologies transition from the research laboratory into commercial development, opportunities for students to begin their careers in this new industry are increasing. With these career pathways, more and people considering best ways educate about concepts relevant skills. In particular, is looking employees with experimental skills, but instructional labs, capstone projects, experiences, internships that provide experiences where can learn skills often resource-intensive not...
As quantum technologies transition from the research laboratory into commercial development, opportunities for students to begin their careers in this new industry are increasing. With these career pathways, more and people considering best ways educate about concepts relevant skills. In particular, is looking employees with experimental skills, but instructional labs, capstone projects, experiences, internships that provide experiences where can learn skills often resource intensive not...
We investigate the influence of exciton-phonon coupling on dynamics a strongly coupled quantum dot-photonic crystal cavity system and explore effects this interaction different schemes for nonclassical light generation. By performing time-resolved measurements, we map out detuning-dependent polariton lifetime extract spectrum polariton-to-phonon with unprecedented precision. Photon-blockade experiments pulse-length detuning conditions (supported by optical simulations) reveal that achieving...
Numerous conceptually important quantum algorithms rely on a blackbox device known as an oracle, which is typically difficult to construct without knowing the answer problem that algorithm intended solve. A notable example Grover's search algorithm. Here we propose Grover for solutions class of NP-complete decision problems subset sum problems, including special case number partitioning. Each instance encoded in couplings set qubits central spin or boson, enables realization oracle knowledge...
[This paper is part of the Focused Collection on Instructional labs: Improving traditions and new directions.] Quantum mechanics a field often considered very mathematical, abstract, unintuitive. One way some instructors are hoping to help familiarize their students with these complex topics have see quantum effects in experiments undergraduate instructional labs. Here, we present results from an interview study about what it means both experiments. We focus popular set optics find that...
As quantum information science and technology (QIST) is becoming more prevalent occurring not only in research labs but also industry, many educators are considering how best to incorporate learning about mechanics into various levels of education. Although much the focus has been on concepts nonlab courses, current work QIST a substantial experimental component. Many instructors undergraduate lab courses want provide their students opportunity with experiments. One common way this done...
The rapid transition to remote teaching in the spring of 2020 posed particular challenges for laboratory courses, which often involve students working hands-on with equipment collaborative environments. Replicating in-person experiments was especially challenging advanced lab courses that utilize specialized apparatus, could not be accessed by at home. However, physics instructors employed a variety creative strategies overcome these barriers and provide access lab-like learning setting. We...
Photovoice is a type of participatory action research in which individuals document their experiences through photography. Through the taking, captioning, and reflecting on photographs that they have taken, participants are able to affect change within communities. Participants also take part an interview or focus group about photos at end photovoice process determine themes appear photos, allowing them participate being done. We used methodology small, project-based, upper-division, physics...
Instruction in quantum mechanics is becoming increasingly important as the field not only a key part of modern physics research but also for emerging technologies. However, many students regard particularly challenging subject, because it considered very mathematical and abstract. One potential way to help understand contextualize unintuitive ideas provide them opportunities work with physical apparatus demonstrating these phenomena. In order how working experiments affects students’...
Physical implementations of large-scale quantum processors based on solid-state platforms benefit from realizations bits positioned in regular arrays. Self-assembled dots are well-established as promising candidates for optics and information processing, but they randomly positioned. Site-controlled dots, the other hand, grown pre-defined locations, have not yet been sufficiently developed to be used a platform processing. In this letter we demonstrate all-optical ultrafast complete coherent...
Modeling, which is the process of constructing, testing, and refining models, an important skill in experimental physics, thus a learning goal many physics laboratory classes. One promising approach to help students develop modeling skills incorporate multiweek student-designed projects into lab courses. In order assess potential benefits these enhancing students' abilities, we analyzed from three upper-division courses at different institutions. By looking written student coursework...
The second quantum revolution has prompted not only research in science and technology, but also on how best to educate students who may enter this burgeoning field.Much of the conversation around education focused students' conceptual learning or skills desired by potential employers; there been an absence work understanding laboratory courses experiments contribute undergraduate education.To begin role play, we surveyed instructors implement with single entangled photons lab found that one...
Instruction in quantum mechanics is becoming increasingly important as the field not only a key part of modern physics research, but also for emerging technologies. However, many students regard particularly challenging subject, because it considered very mathematical and abstract. One potential way to help understand contextualize unintuitive ideas provide them opportunities work with physical apparatus demonstrating these phenomena. In order how working experiments affects students'...
As quantum technologies transition out of the research lab and into commercial applications, it becomes important to better prepare students enter this new evolving workforce. To work towards goal preparing physics for a career in industry, senior capstone course called "Quantum Forge" was created at University Colorado Boulder. This aims provide hands-on experience them workforce directly after their undergraduate studies. Some course's goals are have understand what comprises industry feel...
In response to numerous programs seeking advance quantum education and workforce development in the United States, experts from academia, industry, government, professional societies convened for a National Science Foundation-sponsored workshop February 2024 explore benefits challenges of establishing national center education. Broadly, such would foster collaboration build infrastructure required develop diverse quantum-ready workforce. The discussions centered around how could uniquely...
Photovoice is a type of participatory action research that aims to enable people act as recorders and agents change in their communities.When using the photovoice methodology, participants take photos response open-ended prompts write short captions accompany photos.At end process, engage focus group where they collectively determine some themes show, allowing them co-create being done.We implemented methodology projectbased upper-division physics course which students partnered with company...
We propose methods to perform intensity interferometry of photons having two different wavelengths. Distinguishable particles typically cannot interfere with each other, but we overcome that obstacle by processing the via entanglement and projection so they lead same final state at detection apparatus. Specifically, discuss how quasi-phase-matched nonlinear crystals can be used convert a quantum superposition light wavelengths onto common wavelength, while preserving phase information...
Indistinguishability of photons that need not be detected results in a novel paradigm quantum information processing. This confirms for interference it is important whether two possibilities could principle distinguished independent detection.