• Organization: National Institute of Standards and Technology
• Updated: 2018-02-17 00:00:00

This software package performs joint quantum state and measurement tomography. The software is provided as Python source code. A description of the algorithms used is in "Joint Quantum State and...

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• Organization: National Institute of Standards and Technology
• Updated: 2005-11-01 00:00:00

This database contains the rotational spectral lines observed and reported in the open literature for 121 diatomic molecules through July 2002. The isotopic molecular species, assigned quantum...

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• Organization: National Institute of Standards and Technology
• Updated: 2024-02-23 00:00:00

These data will appear in [1]. The abstract for that paper is given below:We report on the design, fabrication, and measurement of a Very High Frequency band Josephson Arbitrary Waveform...

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• Organization: National Institute of Standards and Technology
• Updated: 2025-04-20 00:00:00

Data associated with the publication entitled: "Population-resolved measurement of an avoided crossing of light-dressed states."A two-level system coupled by a coherent field is a ubiquitous...

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• Organization: National Institute of Standards and Technology
• Updated: 2005-08-01 00:00:00

This X-ray transition table provides the energies and wavelengths for the K and L transitions connecting energy levels having principal quantum numbers n = 1, 2, 3, and 4. The elements covered...

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• Organization: National Institute of Standards and Technology
• Updated: 2004-07-01 00:00:00

This database contains the rotational spectral lines observed and reported in the open literature for 91 hydrocarbon molecules through September 1987. The isotopic molecular species, assigned...

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• Organization: Department of the Interior
• Updated: 2020-09-22T00:00:00Z

Rates of flow across the sediment-water interface (seepage), measured every 5 seconds with an automated seepage meter and summarized every minute with a digital datalogger, are presented for 17...

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• Organization: National Institute of Standards and Technology
• Updated: 2017-06-01 00:00:00

Random numbers are an important resource for applications such as numerical simulation and secure communication. However, it is difficult to certify whether a physical random number generator is...

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• Organization: National Institute of Standards and Technology
• Updated: 2022-03-08 00:00:00

This Python software package provides functionality for inference of the initial state of a Hidden Markov Model (HMM), when we have access to permutations of the underlying states. We provide both...

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• Organization: National Institute of Standards and Technology
• Updated: 2020-02-18 00:00:00

These data files contain the data for the measured transition frequencies shown in Table I and the traces in Figure 3 of the publication "Frequency-comb spectroscopy on pure quantum states of a...

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• Organization: National Institute of Standards and Technology
• Updated: 2003-07-01 00:00:00

This data base contains the rotational spectral lines observed and reported in the open literature for 55 triatomic molecules through June 1976. The isotopic molecular species, assigned quantum...

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• Organization: National Institute of Standards and Technology
• Updated: 2022-04-26 00:00:00

Data for all measurements published in the manuscript "Bipolar Waveform Synthesis with an Optically Driven Josephson Arbitrary Waveform Synthesizer," which will be published in the journal "IEEE...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-17

This dataset provides the results of in situ measurements of needle-level chlorophyll fluorescence (ChlF) obtained from a pulse amplitude modulated (PAM) fluorometer from evergreen needleleaf...

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• Organization: National Institute of Standards and Technology
• Updated: 2024-08-25 00:00:00

Rydberg states of alkali atoms are highly sensitive to electromagnetic radiation in the GHz-to-THz regime because their transitions have large electric dipole moments. Consequently, environmental...

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• Organization: National Institute of Standards and Technology
• Updated: 2023-05-23 00:00:00

The files within this record represent the data shown in the Nature Physics article, "Strong parametric dispersive shifts in a statically decoupled two-qubit cavity QED system". Descriptions of...

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• Organization: National Institute of Standards and Technology
• Updated: 2024-05-07 00:00:00

Datasets for the four published figures in the Paper "AC Metrology Applications of the Josephson Effect ". This paper is being submitted to Applied Physics Letters Special Topic, "Advances in...

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• Organization: U.S. Environmental Protection Agency
• Updated: 2017-08-25

Four turfgrass systems in or near the Pinehurst Resort and Country Club, Sandhills region, North Carolina, USA was sampled. Twenty intact soil cores (5 cm diameter x 10 cm length) were collected...

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• Organization: Department of Energy
• Updated: 2025-01-13T18:28:22Z

The Solar Radiation Research Laboratory (SRRL) was established at the Solar Energy Research Institute (now NREL) in 1981 to provide continuous measurements of the solar resources, outdoor...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 2016-01-15T00:00:00.000+00:00

This data set is comprised of a hydro-flattened digital elevation model (DEM). The total area collected for Horry County, SC for this project is approximately 1092 square miles. Lidar data was...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 2016-01-15T00:00:00.000+00:00

This data set is comprised of lidar point cloud data. This project required lidar data to be acquired over Horry County, South Carolina. The total area of the Horry County Elevation Data and...

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