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29 results for “rydberg”
Storage enhanced nonlinearities in a cold atomic Rydberg ensemble: experimental data
<p>The data show number of input/output photons under different conditions when coherent pulses of light undergo electromagnetically induced transparency (EIT) in a cold cloud of Rubidium 87 atoms via a ladder system connecting the ground state of 87-Rubidium and different Rydberg levels via (see more details in Distante et al. Phys. Rev. Lett. <strong>117</strong>, 113001 (2016) or in the preprint https://arxiv.org/abs/1605.07478)</p> <p>This is the pre-analysed data from which the results in the paper are derived.</p> <p> </p> <ul> <li>The ODS file contains different sheets which correspond to Rydberg states with different principal quantum numbers</li> <li>The PDF contains useful information regarding the conditions of the experiment under which the data was obtained, such as the optical depth (OD) of the cloud, its dimensions, and the Rabi frequency of the coupling beam.</li> </ul>
Storing single photons emitted by a quantum memory on a highly excited Rydberg state - Figure data
<p>The files contain the data associated with the paper Distante, Farrera et al. "Mapping single photons emitted by a quantum memory on a highly excited Rydberg state".</p> <p>The name of each file corresponds to the figure number (e.g. figure2a, figure3b, etc.) and the first element in each file (the first row) is the date in which the data has been taken. The data is the result of a pre-processing of histogram and time-stamping files in the experiment. On reasonable request, we can provide the raw data.</p> <p>The fits in the figures are referenced throughout the open-access paper, and can be found in the Supplementary Information of the publication.</p>
Set of cross sections presented in "Electronic excitation of benzene by low energy electron impact and the role of higher lying Rydberg states"
<p>Contents:</p> <p>117_ch_thresholds.txt: TCIS excitation energies obtained from the 117CH-B1 calculation.</p> <p>305_ch_thresholds.txt: TCIS excitation energies obtained from the 305CH-B2 calculation.</p> <p>117_ch_DCS.tar.gz: differential cross sections obtained from the 117CH-B1 calculation.</p> <p>305_ch_DCS.tar.gz: differential cross sections obtained from the 305CH-B2 calculation.</p> <p>305_ch_DCS_BC.tar.gz: differential cross sections obtained from the 305CH-B2 calculation with the Born-Closure procedure for the dipole-allowed transitions of band V.</p> <p>305_ch_ICS_and_ICS_BC.tar.gz: elastic and summed electronic excitation integral cross sections and total cross sections, obtained from the 305CH-B2 calculation, with and without the Born-Closure procedure for the dipole-allowed transitions of band V.</p>
A photonic entanglement filter with Rydberg atoms
<p>Devices capable of deterministically manipulating the photonic entanglement are of paramount importance, since photons are the ideal messengers for quantum information. However, due to the non-interacting nature of photons, many photonic quantum operations have only been demonstrated using probabilistic linear-optical approaches, which lead to overwhelming resource overhead and poor scalability. Here, we report a novel entanglement filter that transmits the desired photonic entangled state and blocks the unwanted ones. In contrast to prior probabilistic approaches, our experiment exploits strong and controllable photon-photon interaction enabled by Rydberg atoms, so the filtering of undesired states succeeds in a fully deterministic way. Photonic entanglement with near-unity fidelity can be extracted from an input state with an arbitrarily low initial fidelity. The protocol is inherently robust, and succeeds both in the Rydberg blockade regime and in the interaction-induced dissipation regime. Such an entanglement filter opens new routes toward scalable photonic quantum information processing with multiple ensembles of Rydberg atoms.</p>
Data of publication: "Many-Body Radiative Decay in Strongly Interacting Rydberg Ensembles"
<p>The uploaded files contain the data of the simulations presented in the figures in <a href="https://doi.org/10.1103/PhysRevLett.129.243202">https://doi.org/10.1103/PhysRevLett.129.243202</a>.</p>
Data for: "Parallel implementation of CNOT^N and C_2NOT^2 gates via homonuclear and heteronuclear Forster interactions of Rydberg atoms"
<p>Datasets for “Parallel implementation of CNOT^N and C_2NOT^2 gates via homonuclear and heteronuclear Forster interactions of Rydberg atoms”,</p> <p>by Ahmed M. Farouk, I.I. Beterov, Peng Xu, S. Bergamini, and I.I. Ryabtsev</p> <p>This repository contains files, each representing data plotted in the manuscript in .csv format. </p> <p>For more details please see manuscript.</p> <p>preprint url:</p> <p>https://arxiv.org/abs/2206.12176 </p> <p>Contact details: </p> <p>ahmed.farouk@azhar.edu.eg</p> <p> </p>
Magic running and standing wave optical traps for Rydberg atoms - Data and code for analysis
<p>Data, theory calculation and plotting scripts for the publication titled "Magic running and standing wave optical traps for Rydberg atoms" (<a href="https://arxiv.org/abs/2410.20901" target="_blank" rel="noopener">arXiv:2410.20901</a>).</p> <p> </p> <p><strong>File legend</strong></p> <ul> <li> <code>data_FIGx_yyy.mat</code> contains the calculated or measured data used in Figure x</li> <li> <code>calc_FIGx_yyy.py</code> is the script to calculate the theoretical data used in Figure x</li> <li> <code>plot_FIGx_yy.py</code> is the script to create the Figure x of the paper</li> <li> <code>simulation_class.py</code> is a class with theory functions</li> <li> <code>paperstyle.mplstyle</code> is a matplotlib style file</li> <li> <code>requirements.txt</code> lists all the required python packages</li> </ul> <p> </p> <p><strong>Abstract</strong></p> <p>Magic trapping of ground and Rydberg states, which equalizes the AC Stark shifts of these two levels, enables increased ground-to-Rydberg state coherence times. We measure via photon storage and retrieval how the ground-to-Rydberg state coherence depends on trap wavelength for two different traps and find different optimal wavelengths for a 1D optical lattice trap and a running wave optical dipole trap. Comparison to theory reveals that this is caused by the Rydberg electron sampling different potential landscapes. The observed difference increases for higher principal quantum numbers, where the extent of the Rydberg electron wave function becomes larger than the optical lattice period. Our analysis shows that optimal magic trapping conditions depend on the trap geometry, in particular for optical lattices and tweezers.</p> <p> </p> <p><strong>Theory calculation</strong></p> <p>We implemented the potential arising from the Hamiltonians described in the paper. The functions are shared here in the python class <code>simulation_class.py</code>. This class is used in the calculation scripts named <code>calc_FIGx_yyy.py</code> and saves the data as <code>data_FIGx_yyy.mat</code> for the respective Figure x.</p> <p>In case of questions to the code or calculations, please contact Chris Nill or Lukas Ahlheit.</p> <p> </p> <p><strong>Experimental data</strong></p> <p>The experimental data published here are photon storage and retrieval traces of 780 nm probe photons as function of storage duration. We recorded photon traces for different trap laser detunings and Rydberg states.</p> <p>In case of questions to the data, please contact Lukas Ahlheit or Sebastian Hofferberth.</p> <p> </p> <p><strong>Inkscape modification to specific figures</strong></p> <ul> <li>Figure 1: The plotted data is joined in Inkscape with schematic drawings</li> <li>Figure 2: The plot created by the python file is edited in Inkscape for readability</li> <li>Figure 5: We add two schematics into the figure created by the python file</li> </ul>
Replication data for: "Ultrafast energy exchange between two single Rydberg atoms on the nanosecond timescale"
<p>Replication data for Figure 3 and 4 of "Ultrafast energy exchange between two single Rydberg atoms on the nanosecond timescale"</p> <p>Preprint at: https://arxiv.org/abs/2111.12314</p> <p> </p>
Bottom-up Fabrication of 2D Rydberg Exciton Arrays in Cuprous Oxide
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Raw data for "Radii of Rydberg states of isolated silicon donors" by Juerong Li et al, Phys Rev B 2018
<p>This upload contains raw data for the field dependent spectra, as in the example of Figure 1a of the manuscript. </p> <p>The data consists of interferograms in columns. Each interferogram has been averaged 30 times. The first row of each data matrix refers to the magnetic field value in the units of Tesla, while the first column indicates the step number in units of wavenumber, which is in power-of-two multiples of the HeNe laser wavelength i.e. 16x632.8 nm. A tab is used to separate data within the rows. The length of the interferogram determines the resolution, which is different for each figure/file.</p> <p>The samples (and field resolution) used for each figure are different. All samples are FZ grown with the growth direction of <100>, all were polished to 1 degree wedge. The sample details are as follows:</p> <p>Name, Doping species, Doping concentration (10^14 cm-3), data file name. <br> Corretto (reference sample), P, 8, Supplementary Data 1.txt<br> Black, Bi, 1.28, Supplementary Data 2.txt<br> 85-3, Li and Mg, 2.3 for Li and 5 x for Mag, Supplementary Data 3.txt<br> V496, P and Sb, 18 for P and 12 for Sb, Supplementary Data 4.txt<br> 72-8a, Se, 26, Supplementary Data 5.txt<br> 66.7, S, 13, Supplementary Data 6.txt </p> <p> </p>
Controlled multi-photon subtraction with cascaded Rydberg superatoms as single-photon absorbers
<p>Data for "Controlled multi-photon subtraction with cascaded Rydberg superatoms as single-photon absorbers"</p>
Level statistics and entanglement entropy of Rydberg dressed bosons in a triple-well potential
<p>We study the signatures of quantum chaos in Rydberg dressed bosonic atoms held in a 1 triple-well potential. Dynamics of the bosons are governed by an extended Bose-Hubbard model (EBHM) where long-range nearest-neighbor and next-nearest-neighbor interactions are induced by laser coupling the ground state to Rydberg state. We analyze the level statistics of the EBHM for finite number N of atoms through numerical diagonalization. In the presence of a tilting potential, the level statistics are Poissonian distribution for weak dressed interaction. It becomes a Wigner-Dyson distribution for strong interaction, signifying the emergence of quantum chaos. A hybrid distribution is obtained when the dressed interaction is much stronger than the hopping rate. Using the Fock basis, we further calculate dynamical evolution of the entanglement entropy. The maximal value (upper bound) of the entanglement entropy is proved to depend on particle numbers in the form ln(N + 1). It is found that the maximum of the time-averaged entanglement entropy appears when the chaos is strong. The location of the maximum as a function of the dressed interaction and tilting potential is independent of atom number N.</p>
Spectroscopy of elementary excitations from quench dynamics in a dipolar XY Rydberg simulator
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Data from: Approaching the standard quantum limit of a Rydberg-atom microwave electrometer
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Dataset for the manuscript 'Orbital-optimized Density Functional Calculations of Molecular Rydberg Excited States with Real Space Grid Representation and Self-Interaction Correction'
<p>Dataset for the manuscript 'Orbital-optimized Density Functional Calculations of Molecular Rydberg Excited States with Real Space Grid Representation and Self-Interaction Correction'</p>
Tripartite quantum Rabi model with trapped Rydberg ions data
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Phonon-assisted coherent transport of excitations in Rydberg-dressed atom arrays
<p>Data corresponding to the article 'Phonon-assisted coherent transport of excitations in Rydberg-dressed atom arrays'.</p> <p>File description:</p> <ul> <li> <p>data_experimental_single_run.zip - numerical data corresponding to Fig. 2 and Fig. 3</p> </li> <li> <p>data_general_phase_diagram_dense_grid.zip - numerical data corresponding to Fig. 4</p> </li> <li>data_general_phase_diagram_dense_grid_zoom.zip - numerical data corresponding to Fig. 5</li> <li> <p>data_general_single_run_reply.zip - numerical data corresponding to Fig. 6 and Fig. 7</p> </li> </ul>
Single Photon Switch and Facilitation Induced Transparency with Dual-channel Rydberg Interactions
<p>Original data for "Single Photon Switch and Facilitation Induced Transparency with Dual-channel Rydberg Interactions". Data can be opened with Matlab.</p>
Data for "Sequential generation of multiphoton entanglement with a Rydberg superatom"
<p>This dataset is for the research article "Sequential generation of multiphoton entanglement with a Rydberg superatom".</p>
Data for "Deterministic measurement of a Rydberg superatom qubit via cavity-enhanced single-photon emission"
<p>This dataset is for the research article "Deterministic measurement of a Rydberg superatom qubit via cavity-enhanced single-photon emission".</p>
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