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In this paper, the off-diagonal geometric phase of thermal state in hydrogen atom under the effects of external magnetic field is considered. Increasing temperature tends to suppress the off-diagonal geometric phase, including 1-order and…

Quantum Physics · Physics 2009-07-13 Guo-Qiang Zhu

The number of hydrogen-like atoms produced when heavy nuclei collide is estimated for central collisions at the Relativistic Heavy Ion Collider using the sudden approximation of Baym et al. As first suggested by Schwartz, a simultaneous…

Nuclear Theory · Physics 2009-10-31 Joseph Kapusta , Agnes Mocsy

We compute, via a variational mixed-base method, the energy spectrum of a two dimensional relativistic atom in the presence of a constant magnetic field of arbitrary strength. The results are compared to those obtained in the…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 V. M. Villalba , R. Pino

It is possible that the proton is stable while atomic hydrogen is not. This is the case in models with new particles carrying baryon number which are light enough to be stable themselves but heavy enough so that proton decay is…

High Energy Physics - Phenomenology · Physics 2020-03-06 David McKeen , Maxim Pospelov

We calculate the rate of the spontaneous magnetic dipole radiation transitions from ortho- to para-states of the hydrogen molecule at the room temperature with the radiation wavelengths about 0.01 - 0.1 cm. Exponentially small differences…

Atomic Physics · Physics 2018-11-19 A. M. Ishkhanyan , V. P. Krainov

The behavior of mass is well known, as described by Newton's Laws of Motion, the Lorentz Contractions, and Einstein's mass - energy equivalence. But just what mass is, how those behaviors come about, what in material reality produces the…

General Physics · Physics 2007-05-23 Roger Ellman

The quantum spectra of hydrogen atoms in various magnetic fields have been calculated with the closed orbit theory. The magnitude of the magnetic field decreases from 5.96 T to 0.56T with a step of 0.6T. We demonstrate schematically that…

Atomic Physics · Physics 2009-11-13 Liang-You Peng , Xian-Zhou Zhang , Jian-Guo Rao

The discovery of the Higgs boson at the LHC, and especially the determination of its mass around 125 GeV, together with the absence of any trace of new physics make it conceivable that we live in a metastable (but long-lived) electroweak…

High Energy Physics - Lattice · Physics 2013-11-11 Jose R. Espinosa

We calculate the energy of a homogeneous one component plasma and find that the energy is lower for correlated motions of the particles as compared to uncorrelated motion. Our starting point is the conserved approximately relativistic…

Plasma Physics · Physics 2009-11-13 Hanno Essen

Rest mass takes the place of inertial mass in modern physics textbooks. It seems to be wrong. But this phenomenon is hidden away by the facts that rest mass adherents busily call rest mass "mass", not rest mass, and the word "mass" is…

General Physics · Physics 2007-05-23 R. I. Khrapko

A new model of quantum mechanics, Classical Quantum Mechanics, is based on the (nearly heretical) postulate that electrons are physical objects that obey classical physical laws. Indeed, ionization energies, excitation energies etc. are…

Plasma Physics · Physics 2008-10-30 Jonathan Phillips

Astrophysical models of primordial star formation require rate constants for three-body recombination as input. The current status of these rates for H2 due to collisions with H is far from satisfactory, with published rate constants…

Cosmology and Nongalactic Astrophysics · Physics 2013-08-13 Robert C. Forrey

We present numerical results for the equation of state of an infinite chain of hydrogen atoms. A variety of modern many-body methods are employed, with exhaustive cross-checks and validation. Approaches for reaching the continuous space…

We compute the mass of the Higgs particle in a scheme in which SUSY is broken at a large scale M_{SS} well above the electroweak scale M_{EW}. Below M_{SS} one assumes one is just left with the SM with a fine-tuned Higgs potential. Under…

High Energy Physics - Phenomenology · Physics 2015-06-12 Luis E. Ibanez , Irene Valenzuela

Mercury has perhaps the strangest behavior of any of the metals. Although the other metals in column IIB have an $hcp$ ground state, mercury's ground state is the body centered tetragonal $\beta$Hg phase. The most common phase of mercury is…

mtrl-th · Physics 2008-02-03 Michael J. Mehl

We estimate the ground state masses of the heavy hybrid mesons using a phenomenological QCD-type potential. 0^{- -},1^{- -},0^{- +},1^{- +} and 0^{+ -} J^{PC} states are considered.

High Energy Physics - Phenomenology · Physics 2007-05-23 F. Iddir , L. Semlala

For a given asymptotically flat initial data set for Einstein equations a new geometric invariant is constructed. This invariant measure the departure of the data set from the stationary regime, it vanishes if and only if the data is…

General Relativity and Quantum Cosmology · Physics 2009-11-10 Sergio Dain

A simple expression for a ground state energy for a two-electron atom is derived. For this, assumption based upon the Niels Bohr ''old'' quantum mechanics idea about electron correlation in a two-electron atom is exploited. Results are…

Quantum Physics · Physics 2007-05-23 M. Auzinsh , R. Damburg

It is shown that the ground state energy of heavy atoms is, to leading order, given by the non-relativistic Thomas-Fermi energy. The proof is based on the relativistic Hamiltonian of Brown and Ravenhall which is derived from quantum…

Mathematical Physics · Physics 2007-05-23 Roch Cassanas , Heinz Siedentop

We have formulated a self-consistent model of freeze-out on an arbitrary hypersurface. It conserves energy and momentum across the discontinuity between ideal fluid and the gas of free particles. Energy and momentum of those free particles…

Nuclear Theory · Physics 2009-10-31 Kyrill A. Bugaev