Journal articles on the topic 'Orbital Feshbach resonance'

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1

Zhang, Haiyang, Fazal Badshah, Abdul Basit, and Guo-Qin Ge. "Orbital Feshbach resonance of Fermi gases in an optical lattice." Journal of Physics B: Atomic, Molecular and Optical Physics 51, no. 18 (August 28, 2018): 185301. http://dx.doi.org/10.1088/1361-6455/aad83b.

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2

Shi, Yue-Ran, Zhuo-Cheng Lu, Jing-Kun Wang, and Wei Zhang. "Impurity problem of alkaline-earth-like atoms near an orbital Feshbach resonance." Acta Physica Sinica 68, no. 4 (2019): 040305. http://dx.doi.org/10.7498/aps.68.20181937.

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3

Zhang, Haiyang, Fazal Badshah, Abdul Basit, and Guo-Qin Ge. "Fermi gas of orbital Feshbach resonance in synthetic 1D+1 dimensional optical lattice." Laser Physics Letters 15, no. 11 (September 4, 2018): 115501. http://dx.doi.org/10.1088/1612-202x/aadab0.

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4

Mondal, Soumita, Daisuke Inotani, and Yoji Ohashi. "Photoemission Spectrum in the BCS–BEC Crossover Regime of a Rare-Earth Fermi Gas with an Orbital Feshbach Resonance." Journal of the Physical Society of Japan 87, no. 9 (September 15, 2018): 094301. http://dx.doi.org/10.7566/jpsj.87.094301.

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5

Mondal, S., D. Inotani, and Y. Ohashi. "Closed-channel contribution in the BCS-BEC crossover regime of an ultracold Fermi gas with an orbital Feshbach resonance." Journal of Physics: Conference Series 969 (March 2018): 012017. http://dx.doi.org/10.1088/1742-6596/969/1/012017.

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6

Mondal, Soumita, Daisuke Inotani, and Yoji Ohashi. "Single-particle Excitations and Strong Coupling Effects in the BCS–BEC Crossover Regime of a Rare-Earth Fermi Gas with an Orbital Feshbach Resonance." Journal of the Physical Society of Japan 87, no. 8 (August 15, 2018): 084302. http://dx.doi.org/10.7566/jpsj.87.084302.

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7

Bhatia, Anand K. "Photoejection from Various Systems and Radiative-Rate Coefficients." Atoms 10, no. 1 (January 19, 2022): 9. http://dx.doi.org/10.3390/atoms10010009.

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Photoionization or photodetachment is an important process. It has applications in solar- and astrophysics. In addition to accurate wave function of the target, accurate continuum functions are required. There are various approaches, like exchange approximation, method of polarized orbitals, close-coupling approximation, R-matrix formulation, exterior complex scaling, the recent hybrid theory, etc., to calculate scattering functions. We describe some of them used in calculations of photodetachment or photoabsorption cross sections of ions and atoms. Comparisons of cross sections obtained using different approaches for the ejected electron are given. Furthermore, recombination rate coefficients are also important in solar- and astrophysics and they have been calculated at various electron temperatures using the Maxwell velocity distribution function. Approaches based on the method of polarized orbitals do not provide any resonance structure of photoabsorption cross sections, in spite of the fact that accurate results have been obtained away from the resonance region and in the resonance region by calculating continuum functions to calculate resonance widths using phase shifts in the Breit–Wigner formula for calculating resonance parameters. Accurate resonance parameters in the elastic cross sections have been obtained using the hybrid theory and they compare well with those obtained using the Feshbach formulation. We conclude that accurate results for photoabsorption cross sections can be obtained using the hybrid theory.
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8

Žďánská, Petra R., and Nimrod Moiseyev. "Hartree-Fock orbitals for complex-scaled configuration interaction calculation of highly excited Feshbach resonances." Journal of Chemical Physics 123, no. 19 (November 15, 2005): 194105. http://dx.doi.org/10.1063/1.2110169.

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9

Gil, T. J., C. L. Winstead, J. A. Sheehy, R. E. Farren, and P. W. Langhoff. "New Theoretical Perspectives on Molecular Shape Resonances: Feshbach–Fano Methods for Mulliken Orbital Analysis of Photoionization Continua." Physica Scripta T31 (January 1, 1990): 179–88. http://dx.doi.org/10.1088/0031-8949/1990/t31/025.

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10

Чернышова, И. В., Е. Э. Контрош, and О. Б. Шпеник. "Соударения медленных электронов с молекулами тимина." Журнал технической физики 126, no. 2 (2019): 109. http://dx.doi.org/10.21883/os.2019.02.47190.162-18.

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AbstractUsing a hypocycloidal electron spectrometer, the total scattering cross section of slow (0–9 eV) electrons and the dissociative electron attachment cross section for thymine molecules in the gas phase were measured. The ionization cross section for a thymine molecule was studied in the energy range of 9–32 eV. Some features were found in the scattering cross section, caused by the formation and decay of short-lived states of the molecular negative ion. Three of them ( E = 0.32, 1.71, and 4.03 eV) relate to shape resonances; the others, which are observed for the first time, refer to the Feshbach resonances (or core-excited resonances). In the total dissociative attachment cross section in the energy range of E < 4 eV, a clear structure is observed due to the formation of a negative ion (T–H)^–, and a less intense structure associated with the total contribution of fragment thymine ions is found above 4 eV. The correlation of the features found in the total scattering cross section and in the dissociative attachment cross section is assessed. The absolute total scattering cross section was obtained by normalizing the measured curve to the theoretical calculation. In the total ionization cross section, features are observed that are associated both with the effect of the formation of fr-agment ions and with ionization due to the ejection of electrons from the orbitals of the outer shell of the molecule.
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11

Zhang, Ren, Yanting Cheng, Hui Zhai, and Peng Zhang. "Orbital Feshbach Resonance in Alkali-Earth Atoms." Physical Review Letters 115, no. 13 (September 21, 2015). http://dx.doi.org/10.1103/physrevlett.115.135301.

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12

Cheng, Yanting, Ren Zhang, and Peng Zhang. "Quantum defect theory for the orbital Feshbach resonance." Physical Review A 95, no. 1 (January 23, 2017). http://dx.doi.org/10.1103/physreva.95.013624.

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13

Höfer, M., L. Riegger, F. Scazza, C. Hofrichter, D. R. Fernandes, M. M. Parish, J. Levinsen, I. Bloch, and S. Fölling. "Observation of an Orbital Interaction-Induced Feshbach Resonance inYb173." Physical Review Letters 115, no. 26 (December 21, 2015). http://dx.doi.org/10.1103/physrevlett.115.265302.

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14

Iskin, M. "Trapped Yb173 Fermi gas across an orbital Feshbach resonance." Physical Review A 95, no. 1 (January 18, 2017). http://dx.doi.org/10.1103/physreva.95.013618.

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15

Xu, Junjun, Ren Zhang, Yanting Cheng, Peng Zhang, Ran Qi, and Hui Zhai. "Reaching a Fermi-superfluid state near an orbital Feshbach resonance." Physical Review A 94, no. 3 (September 9, 2016). http://dx.doi.org/10.1103/physreva.94.033609.

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16

Hauke, Philipp, Erhai Zhao, Krittika Goyal, Ivan H. Deutsch, W. Vincent Liu, and Maciej Lewenstein. "Orbital order of spinless fermions near an optical Feshbach resonance." Physical Review A 84, no. 5 (November 21, 2011). http://dx.doi.org/10.1103/physreva.84.051603.

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17

Chen, Jin-Ge, Tian-Shu Deng, Wei Yi, and Wei Zhang. "Polarons and molecules in a Fermi gas with orbital Feshbach resonance." Physical Review A 94, no. 5 (November 28, 2016). http://dx.doi.org/10.1103/physreva.94.053627.

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18

Pagano, G., M. Mancini, G. Cappellini, L. Livi, C. Sias, J. Catani, M. Inguscio, and L. Fallani. "Strongly Interacting Gas of Two-Electron Fermions at an Orbital Feshbach Resonance." Physical Review Letters 115, no. 26 (December 21, 2015). http://dx.doi.org/10.1103/physrevlett.115.265301.

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19

Deng, Tian-Shu, Zhuo-Cheng Lu, Yue-Ran Shi, Jin-Ge Chen, Wei Zhang, and Wei Yi. "Repulsive polarons in alkaline-earth-metal-like atoms across an orbital Feshbach resonance." Physical Review A 97, no. 1 (January 30, 2018). http://dx.doi.org/10.1103/physreva.97.013635.

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20

Yu, Dongyang, Wei Zhang, and Wu-Ming Liu. "Enhanced Fulde-Ferrell-Larkin-Ovchinnikov and Sarma superfluid states near an orbital Feshbach resonance." Physical Review A 100, no. 5 (November 13, 2019). http://dx.doi.org/10.1103/physreva.100.053612.

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21

Wang, Su, Jian-Song Pan, Xiaoling Cui, Wei Zhang, and Wei Yi. "Topological Fulde-Ferrell states in alkaline-earth-metal-like atoms near an orbital Feshbach resonance." Physical Review A 95, no. 4 (April 25, 2017). http://dx.doi.org/10.1103/physreva.95.043634.

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22

He, Lianyi, Jia Wang, Shi-Guo Peng, Xia-Ji Liu, and Hui Hu. "Strongly correlated Fermi superfluid near an orbital Feshbach resonance: Stability, equation of state, and Leggett mode." Physical Review A 94, no. 4 (October 13, 2016). http://dx.doi.org/10.1103/physreva.94.043624.

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23

Kamihori, Taro, Daichi Kagamihara, and Yoji Ohashi. "Superfluid properties of an ultracold Fermi gas with an orbital Feshbach resonance in the BCS-BEC crossover region." Physical Review A 103, no. 5 (May 24, 2021). http://dx.doi.org/10.1103/physreva.103.053319.

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24

Iskin, M. "Two-band superfluidity and intrinsic Josephson effect in alkaline-earth-metal Fermi gases across an orbital Feshbach resonance." Physical Review A 94, no. 1 (July 25, 2016). http://dx.doi.org/10.1103/physreva.94.011604.

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25

Zhang, Yi-Cai, Shanshan Ding, and Shizhong Zhang. "Collective modes in a two-band superfluid of ultracold alkaline-earth-metal atoms close to an orbital Feshbach resonance." Physical Review A 95, no. 4 (April 27, 2017). http://dx.doi.org/10.1103/physreva.95.041603.

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26

Zou, Peng, Huaisong Zhao, Lianyi He, Xia-Ji Liu, and Hui Hu. "Dynamic structure factors of a strongly interacting Fermi superfluid near an orbital Feshbach resonance across the phase transition from BCS to Sarma superfluid." Physical Review A 103, no. 5 (May 10, 2021). http://dx.doi.org/10.1103/physreva.103.053310.

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27

Laird, E. K., Z. Y. Shi, M. M. Parish, and J. Levinsen. "Frustrated orbital Feshbach resonances in a Fermi gas." Physical Review A 101, no. 2 (February 20, 2020). http://dx.doi.org/10.1103/physreva.101.022707.

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28

Zou, Peng, Lianyi He, Xia-Ji Liu, and Hui Hu. "Strongly interacting Sarma superfluid near orbital Feshbach resonances." Physical Review A 97, no. 4 (April 17, 2018). http://dx.doi.org/10.1103/physreva.97.043616.

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29

Xu, Junjun, and Ran Qi. "Polaronic and dressed molecular states in orbital Feshbach resonances." European Physical Journal D 72, no. 4 (April 2018). http://dx.doi.org/10.1140/epjd/e2018-90010-6.

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30

Cheng, Yanting, Ren Zhang, and Peng Zhang. "Orbital Feshbach resonances with a small energy gap between open and closed channels." Physical Review A 93, no. 4 (April 22, 2016). http://dx.doi.org/10.1103/physreva.93.042708.

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31

Karippara Jayadev, Nayanthara, Anthuan Ferino-Pérez, Florian Matz, Anna I. Krylov, and Thomas-Christian Jagau. "The Auger spectrum of benzene." Journal of Chemical Physics, January 18, 2023. http://dx.doi.org/10.1063/5.0138674.

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We present an ab initio computational study of the Auger electron spectrum of benzene. Auger electron spectroscopy exploits the Auger-Meitner effect and, al- though it is established as an analytic technique, the theoretical modeling of molecular Auger spectra from first principles remains challenging. Here, we use coupled- cluster and equation-of-motion coupled-cluster theory combined with two approaches to describe the decaying nature of core-ionized states: (i) Feshbach-Fano resonance theory and (ii) the method of complex basis functions. The spectra computed with these two approaches are in excellent agreement with each other and also agree well with experimental Auger spectra of benzene. The Auger spectrum of benzene features two well-resolved peaks at Auger electron energies above 260 eV that cor- respond to final states with two electrons removed from the 1e1g and 3e2g highest occupied molecular orbitals. At lower Auger electron energies, the spectrum is less well resolved and the peaks comprise multiple final states of the benzene dication. In line with theoretical considerations, singlet decay channels contribute more to the total Auger intensity than the corresponding triplet decay channels.
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