Entangled photons possess many strange properties which make them invaluable tools in physics. This project seeks to push their entanglement to fundamental limits for new applications in quantum information processing.
Nonlinear interferometers, which use parametric amplifiers in place of beam splitters, can improve the signal to noise ratio of interferometric sensors by a factor of twice the power gain. Recently ORNL has realized a novel, inherently stable, nonlinear interferometer using nonlinear rubidium (Rb) vapor. This approach reduces the complexity and the size, weight and power requirements (SWAP) of earlier demonstrations. However, it is still constructed using bulk, free-space optics on a lab table. This project seeks to realize a reduced SWAP further and perform measurements to quantify its performance relative to other approaches.
We propose an entirely new experimental photonic qubit interface which will enable quantum connections between common material qubits such as ions or atoms.
Localized electron emission from nanostructures can be achieved with the aid of excitation of plasmons with short optical pulses.
The main function of this team is perform design and analysis for a variety of systems and applications, including energy research (solar cells, reactors, transportation, and buildings), experimental installations of all types, centrifuge cascades for uranium enrichment and separation of stable isotopes, and industrial facilities. The analysis leads to improvement in performance and assessing risks from accidents or terrorist attacks.
Keep Information Safe at Sea with Quantum Physics
Dispersion models provided by the ARQA team support the processing and quality assurance of meteorological data for use in environmental compliance modeling. In addition, climate data processing is a key contributor to national and international research efforts related to global climate change.
The CSFM team performs independent integrity assessments of engineering structures using computational methods. They specialize in probabilistic risk assessments, as well as in defect assessments and predictions of probability of failure of engineering structures due to the presence of defects. The team has extensive experience in the analysis of ferritic and austenitic steels, including welds and weld heat-affected zones for domestic and international nuclear power plants and performs independent reviews of probabilistic leak-before-break for piping systems of different materials in nuclear power plants. Since the late 1960’s, the CSFM team at ORNL has provided the technical bases and computational tools to the US Nuclear Regulatory Commission’s office of Nuclear Regulatory Research (USA NRC-RES) and are positioned to offer a wide and varied suite of software tools and analysis services, backed by strong and credible research products that are well documented in technical publications.
Qubits must typically be kept isolated and very cold to minimize interactions with the external environment. These interactions lead to qubit decoherence - essentially loss of quantum information - and adversely affect the efficiency of quantum computing schemes. However, it may be possible to not only control these environmental interactions, but harness them in a constructive manner that results in entanglement, versus destroying it. The result is a scalable, more efficient, quantum computing platform that doesn't require cryogenics to operate.