Results 1 to 10 of about 260,950 (169)
Electric Transition Dipole Moment in pre-Born-Oppenheimer Molecular Structure Theory [PDF]
J. Chem. Phys. 141, 154105 (2014), 2014 This paper presents the calculation of the electric transition dipole moment in a pre-Born-Oppenheimer framework. Electrons and nuclei are treated equally in terms of the parametrization of the non-relativistic total wave function, which is written as a linear combination of basis functions constructed with explicitly correlated Gaussian functions and ...
Benjamin Simmen +2 more
arxiv +5 more sources
Resolving the emission transition dipole moments of single doubly-excited seeded nanorods via heralded defocused imaging [PDF]
, 2023 Semiconductor nanocrystal emission polarization is a crucial probe of nanocrystal physics and an essential factor for nanocrystal-based technologies. While the transition dipole moment of the lowest excited state to ground state transition is well characterized, the dipole moment of higher multiexcitonic transitions is inaccessible via most ...
arxiv +1 more source
Is CCSD(T) a proper standard for dipole moment calculations? An analysis considering diverse diatomic species [PDF]
arXiv, 2021 Coupled cluster with single, double, and perturbative triple excitations [CCSD(T)] has been extensively employed as the reference method in benchmarking different quantum chemistry methods. In this work, we test the accuracy of CCSD(T) calculating ground state electric dipole moments at the extrapolated complete basis set (CBS) limit.
arxiv
Phys.Rev.D80:036009,2009, 2009 If dark matter (DM) has non-zero direct or transition, electric or magnetic dipole moment then it can scatter nucleons electromagnetically in direct detection experiments. Using the results from experiments like XENON, CDMS, DAMA and COGENT we put bounds on the electric and magnetic dipole moments of DM.
arxiv +1 more source
Structure and dielectric properties of polar fluids with extended dipoles: results from numerical simulations [PDF]
, 2003 The strengths and short-comings of the point-dipole model for polar fluids of spherical molecules are illustrated by considering the physically more relevant case of extended dipoles formed by two opposite charges $\pm q$ separated by a distance $d$ (dipole moment $\mu=q d$).
arxiv +1 more source
Constraining the dipole moments of the top quark [PDF]
, 2011 We investigate the direct and indirect bounds on dipole operators involving the top quark. A careful analysis shows that the experimental upper limit on the neutron electric dipole moment strongly constrains the chromo-electric dipole of the top. We improve previous bounds by two orders of magnitude.
arxiv +1 more source
Impact of Chiral-Transitions in Quantum Friction [PDF]
arXiv, 2023 We theoretically investigate the role of chiral-transitions in the quantum friction force that acts on a two-level atom that moves with relative velocity v parallel to a planar metallic surface. We find that the friction force has a component that is sensitive to the handedness of the atomic transition dipole moment. In the particular, we show that the
arxiv
General calculation of $4f-5d$ transition rates for rare-earth ions using many-body perturbation theory [PDF]
THE JOURNAL OF CHEMICAL PHYSICS 122, 094714 (2005), 2005 The $4f-5d$ transition rates for rare-earth ions in crystals can be calculated with an effective transition operator acting between model $4f^N$ and $4f^{N-1}5d$ states calculated with effective Hamiltonian, such as semi-empirical crystal Hamiltonian.
arxiv +1 more source
Ab initio calculation of the KRb dipole moments [PDF]
, 2003 The relativistic configuration interaction valence bond method has been used to calculate permanent and transition electric dipole moments of the KRb heteronuclear molecule as a function of internuclear separation. The permanent dipole moment of the ground state $X^1\Sigma^+$ potential is found to be 0.30(2) $ea_0$ at the equilibrium internuclear ...
arxiv +1 more source
Determination of anisotropic dipole moments in self-assembled quantum dots using Rabi oscillations [PDF]
Appl. Phys. Lett. 84, 981 (2004), 2004 By investigating the polarization-dependent Rabi oscillations using photoluminescence spectroscopy, we determined the respective transition dipole moments of the two excited excitonic states |Ex> and |Ey> of a single self-assembled quantum dot that are nondegenerate due to shape anisotropy.
arxiv +1 more source