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 single molecular ion," accessible at https://arxiv.org/abs/1911.12808. In this publication we use generally applicable quantum-logic techniques to prepare a trapped molecular ion in a single quantum state, drive terahertz rotational transitions with an optical frequency comb, and read out the molecular state non-destructively, leaving the molecule ready for further manipulation. One file contains data For Table 1. In the measurement of rotational transition frequencies, the intensities of the comb beams are varied to characterize the effect of AC Stark shift, while the intensity ratio between the sigma and pi polarized beams are kept at close to 2. The average intensity of the sigma-polarized comb beam is quantified by measuring the resultant Stark shift, fSS_sigma, on the 729 nm transition of the Ca+ ion, with the Ca+ ion where the CaH+ ion would be during rotational spectroscopy experiments. The other file contains data for Figure 3, (a) Spectra for the J = 4 to 2 transition: 40CaH+ is prepared in J = 2, followed by a pulse train from the comb Raman beams probing the J = 2 to J = 4 transition. After the probe pulse train, projective measurements of both initial and final states are performed and the state occupation probability is determined. The probe time is ~1.6 ms. The frequency shows the offset of the Raman difference frequency from the resonant value. (b) Rabi flopping on the J = 4 to J = 2 transition: Starting in J = 4, with the comb Raman pulse detuning set to resonance, the state of the 40CaH+ ion is driven coherently to J = 2 by a pulse train of variable duration from the comb Raman beams. The center wavelength of the frequency comb was ~800 nm for these spectra and Rabi flopping traces. The error bars stand for ±1 standard deviation.

Data presented is part of the journal manuscript "Optically Distributing Remote Two-node Microwave Entanglement using Doubly Parametric Quantum Transducers." Data includes graphical plots generated from numerical models and computations for various network topologies which illustrate their thresholds for achieving quantum information transfer.

Most data generated are averaged heterodyne IQ voltages of a reflectometry of a superconducting cavity dispersively coupled to a transmon qubit, where the phase shift of the cavity probe tone is used to infer the qubit state. These data are collected while performing various parameter sweeps to track the qubit state evolution in response to various stimuli.There is also simulation data used to model qubit state evolution when driven with digital pulses.

Most data generated are averaged heterodyne IQ voltages of a reflectometry of a superconducting cavity dispersively coupled to a transmon qubit, where the phase shift of the cavity probe tone is used to infer the qubit state. These data are collected while performing various parameter sweeps to track the qubit state evolution in response to various stimuli.There is also simulation data used to model qubit state evolution when driven with digital pulses.

Numerical values of all data points shown in figures for manuscript "Trap-integrated superconducting nanowire single-photon detectors for trapped-ion qubit state readout", Proc. SPIE 13025, Advanced Photon Counting Techniques XVIII, 1302506 (7 June 2024); https://doi.org/10.1117/12.3014455

Numerical values of all data points shown in figures for manuscript "Trap-Integrated Superconducting Nanowire Single-Photon Detectors with Improved RF Tolerance for Trapped-Ion Qubit State Readout", available on arXiv at https://arxiv.org/abs/2302.01462Manuscript in press at Applied Physics Letters.

Numerical values of all data points shown in figures for manuscript "Trap-Integrated Superconducting Nanowire Single-Photon Detectors with Improved RF Tolerance for Trapped-Ion Qubit State Readout", available on arXiv at https://arxiv.org/abs/2302.01462Manuscript in press at Applied Physics Letters.

Data is for "Effects of Non-Sinusoidal Current Phase Relationships on Single Flux Quantum Circuits" and publication in IEEE Transactions on Applied Superconductivity. Data is from WRspice simulations, as well as MALT margin analysis. Further data analysis was done in python. One set of data is the pulse propagation delay of a chain of JTL's with different current phase relationships. The other set of data is the operating margins of T flip-flop circuits that have been optimized for different current-phase relationships.

Data is for "Effects of Non-Sinusoidal Current Phase Relationships on Single Flux Quantum Circuits" and publication in IEEE Transactions on Applied Superconductivity. Data is from WRspice simulations, as well as MALT margin analysis. Further data analysis was done in python. One set of data is the pulse propagation delay of a chain of JTL's with different current phase relationships. The other set of data is the operating margins of T flip-flop circuits that have been optimized for different current-phase relationships.

Ames Quantum Chemistry Dataset collects electronic structure, reaction kinetics, and dynamics data calculated at Ames Research Center. This includes potential energy curves and surfaces as well as the reaction cross sections and rate coefficients.