Výsledky vyhledávání

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Encoding-Independent Optimization Problem Formulation for Quantum Computing

Autor: Dominguez, Federico, Unger, Josua, Traube, Matthias, Mant, Barry, Ertler, Christian, Lechner, Wolfgang

Publikováno v: Front. Quantum. Sci. Technol. 2 (2023)

We present an encoding and hardware-independent formulation of optimization problems for quantum computing. Using this generalized approach, we present an extensive library of optimization problems and their various derived spin encodings. Common bui

Externí odkaz: http://arxiv.org/abs/2302.03711

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Vibrational Quenching of CN- in Collisions with He and Ar

Autor: Mant, Barry, Yurtsever, Ersin, González-Sánchez, Lola, Wester, Roland, Gianturco, Franco A.

The vibrational quenching cross sections and corresponding low-temperature rate constants for the v = 1 and v = 2 states of CN- colliding with He and Ar atoms have been computed ab initio using new three dimensional potential energy surfaces. Little

Externí odkaz: http://arxiv.org/abs/2101.08147

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Rovibrational quenching of C$_2$-anions in collisions with He, Ne, and Ar atoms

Autor: Mant, Barry P., Gianturco, Franco A., Wester, Roland, Yurtsever, Ersin, González-Sánchez, Lola

Publikováno v: Phys. Rev. A 102, 062810 (2020)

The dicarbon molecular anion is currently of interest as a candidate for laser cooling due to its electronic structure and favorable branching ratios to the ground electronic and vibrational states. Helium has been proposed as a buffer gas to cool th

Externí odkaz: http://arxiv.org/abs/2012.08330

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Rotational state-changing collisions of C$_2$H$^-$ and C$_2$N$^-$ anions with He under interstellar and cold ion trap conditions: a computational comparison

Autor: Franz, Jan, Mant, Barry, González-Sánchez, Lola, Wester, Roland, Gianturco, Franco A.

Publikováno v: J. Chem. Phys. 152 (2020) 234303

We present an extensive range of quantum calculations for the state-changing rotational dynamics involving two simple molecular anions which are expected to play some role in evolutionary analysis of chemical networks in the Interstellar environments

Externí odkaz: http://arxiv.org/abs/2010.14288

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Transformation Properties under the Operations of the Molecular Symmetry Groups $G_{36}$ and $G_{36}\text{(EM)}$ of Ethane $\text{H}_3\text{CCH}_3$

Autor: Mellor, Thomas M., Yurchenko, Sergey N., Mant, Barry P., Jensen, Per

In the present work, we report a detailed description of the symmetry properties of the eight-atomic molecule ethane, with the aim of facilitating the variational calculations of rotation-vibration spectra of ethane and related molecules. Ethane cons

Externí odkaz: http://arxiv.org/abs/1906.11734

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Dissertation/ Thesis

Antimatter chemistry

Autor: Mant, Barry Peter

This thesis concerns the theoretical study of the low-energy interaction of antihydrogen atoms (¯H) with hydrogen molecules and antiprotons (p¯) with hydrogen molecular ions. Both systems are of interest to experiments currently under way at CERN a

Externí odkaz: http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.694686

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ExoMol molecular line lists - XXVII: spectra of C2H4

Autor: Mant, Barry P., Yachmenev, Andrey, Tennyson, Jonathan, Yurchenko, Sergei N.

Publikováno v: MNRAS, 478, 3220 - 3232 (2018)

A new line list for ethylene, $^{12}$C$_2$$^1$H$_4$ is presented. The line list is based on high level ab initio potential energy and dipole moment surfaces. The potential energy surface is refined by fitting to experimental energies. The line list c

Externí odkaz: http://arxiv.org/abs/1806.03469

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