Dipole Polarizability, Cauchy Moments, and Related Properties of Hg

Abstract

We report interferometric measurements of the frequency dependence of the refractive index n and the dipole polarizability α of Hg vapor. From the measured dispersion of the dipole polarizability the Cauchy moments S(−2) = 33.91(34), S(−4) = 279.8(8.4), and S(−6) = 14 100(2810) have been obtained. The static limit S(−2) is in good accordance with ab initio calculations and results obtained from dielectric constant measurements. The Cauchy moments are used to predict approximations of the dispersion interaction energy constant C 6 = 255 au and the second hyperpolarizability γ(0) = 2.2 × 104 au.

ProbingCPViolation with the Electric Dipole Moment of Atomic Mercury

“…In addition, we compute the ground state dipole scalar polarizability for 199 Hg. We obtain a value 33:294ea 3 0 , where a 0 is the Bohr radius, which is in excellent agreement with the experimental value 33:91 AE 0:34 [21].…”

Atomic Polarizabilities and Hyperpolarizabilities: A Critical Compilation

“…The value given in Table 2 is extracted from the experimental molar polarizability 17 ' 18 using the 4 He bohr radius. 37 The experimental polarizabilities in Table 2 were obtained via dielectric constant measurements for He, 17 ' 18 Ne, 21 Ar, 25 Kr, 21 and Xe, 21 atomic beam interferometry for Na, 22 a time-of-flight method for Cs, 32 the E-H gradient balance technique for Li, 19 K, 19 Rb, 19 and In, 31 beam deflection for Al, 23 ' 24 Ca, 27 Sr, 29 Ba, 29 In, 31 and Tl, 6 ' 16 refractivity measurements for N, 20 O, 20 Ar, 26 Zn, 28 Cd, 30 and Hg, 35 field ion microscopy for Ta, 34 and Ir, 34 and a light force method for U. 36 …”

Positron-Atom Complexes as Quantum Halo States

“…One possible candidate would be mercury, which has a polarizability of 33:91 0:34a 3 0 [26]. So if positron binding to Hg were possible, then it is likely that the resulting complex would be more weakly bound than e Be and exhibit a more prominent halo.…”