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We investigate a cavity quantum electrodynamic effect, where the alignment of two-dimensional freely rotating optical dipoles is driven by their collective coupling to the cavity field. By exploiting the formal equivalence of a set of…

Quantum Physics · Physics 2017-08-02 Erika Cortese , Pavlos Lagoudakis , Simone De Liberato

In high-energy astrophysical processes involving compact objects, such as core-collapse supernovae or binary neutron star mergers, neutrinos play an important role in the synthesis of nuclides. Neutrinos in these environments can experience…

High Energy Astrophysical Phenomena · Physics 2024-06-10 A. Baha Balantekin , Michael J. Cervia , Amol V. Patwardhan , Rebecca Surman , Xilu Wang

We investigate the effect of curvature on the behaviour of a quantum particle bound to move on a surface. For the Gaussian bump we derive and discuss the quantum potential which results in the appearance of a bound state for particles with…

Quantum Physics · Physics 2009-11-13 Victor Atanasov , Rossen Dandoloff

The behavior of the collective rotor in the chiral motion of triaxially deformed nuclei is investigated using the particle rotor model by transforming the wave functions from the $K$-representation to the $R$-representation. After examining…

Nuclear Theory · Physics 2019-06-26 Q. B. Chen , N. Kaiser , Ulf-G. Meißner , J. Meng

Investigations of emergent symmetry breaking phenomena occurring in small finite-size systems are reviewed, with a focus on the strongly correlated regime of electrons in two-dimensional semicoductor quantum dots and trapped ultracold…

Mesoscale and Nanoscale Physics · Physics 2021-12-24 Constantine Yannouleas , Uzi Landman

Using the quark-meson coupling model, we study the longitudinal response function for quasielastic electron scattering from nuclear matter within relativistic RPA. In QMC the coupling constant between the scalar meson and the nucleon is…

Nuclear Theory · Physics 2009-11-06 K. Saito

The nuclear wobbling motion in the Lu region is studied by the microscopic cranked mean-field plus RPA method. The Woods-Saxon potential is used as a mean-field with a new parameterization which gives reliable description of rapidly…

Nuclear Theory · Physics 2009-11-11 Takuya Shoji , Yoshifumi R. Shimizu

We discuss properties of the quadrupole collective excitation of the deformed neutron-rich nucleus $^{38}$Mg within the framework of quasi-particle random phase approximation (QRPA). We first solve the coupled-channels equations to obtain…

Nuclear Theory · Physics 2015-06-26 K. Hagino , Nguyen Van Giai , H. Sagawa

We present a symmetry projection technique for enforcing rotational and parity symmetries in nuclear-electronic Hartree-Fock wave functions, which treat electrons and nuclei on equal footing. The molecular Hamiltonian obeys rotational and…

Chemical Physics · Physics 2023-11-03 Robin Feldmann , Alberto Baiardi , Markus Reiher

We discuss some characteristic features of the wobbling motion excited on the triaxial superdeformed Lu nucleus. We show how these features are connected to the moments of inertia microscopically calculated by means of the quasiparticle RPA…

Nuclear Theory · Physics 2008-11-26 Masayuki Matsuzaki , Yoshifumi R. Shimizu , Kenichi Matsuyanagi

Rotation of such objects as an atomic nucleus or a chromodynamical string can result in specific effects in scattering processes and multiparticle production. Secondary fragments of the rotating nucleus or of the decaying string can move…

High Energy Physics - Phenomenology · Physics 2022-03-02 I. M. Dremin , V. I. Manko

The effect of spontaneous breaking of initial SO(3) symmetry is shown to be possible for an H-like atom in the ground state, when it is confined in a spherical box under general boundary conditions of "not going out" through the box surface…

Atomic Physics · Physics 2017-08-02 K. Sveshnikov , A. Tolokonnikov

We present a macroscopic model for the energy of rotation nuclei which has several refinements relative to the rotating liquid drop model. The most important features are the inclusion of the shell correction and using a new family of…

Nuclear Theory · Physics 2007-05-23 A. Boucenna , S. Madjber , A. Bouketir

The quantum self-organization is introduced as one of the major underlying mechanisms of the quantum many-body systems, for instance, atomic nuclei. It is shown that atomic nuclei are not necessarily like simple rigid vases containing…

Nuclear Theory · Physics 2018-03-14 T. Otsuka , Y. Tsunoda , T. Togashi , N. Shimizu , T. Abe

The nuclear spin, being much more isolated from the environment than its electronic counterpart, enables quantum experiments with prolonged coherence times and presents a gateway towards uncovering the intricate dynamics within an atom.…

Mesoscale and Nanoscale Physics · Physics 2023-09-08 Lukas M. Veldman , Evert W. Stolte , Mark P. Canavan , Rik Broekhoven , Philip Willke , Laëtitia Farinacci , Sander Otte

The nuclear quadruple moment is a fundamental character associated to the nuclei, this moment is related to the not purely spherical distribution in the nuclei, indeed its measure allows us to survey the geometric deformation of the nuclei…

Nuclear Theory · Physics 2016-07-05 Mohamed Belfkir

The coupled dynamics of low lying modes and various giant resonances are studied with the help of the Wigner Function Moments method generalized to take into account spin degrees of freedom and pair correlations simultaneously. The method…

Nuclear Theory · Physics 2017-05-24 E. B. Balbutsev , I. V. Molodtsova , P. Schuck

In this paper, we discuss the impact of rotation on the particle composition of rotating neutron stars (pulsars). Particular emphasis is put on the formation of quark matter during stellar spin-down, driven by continuous gravitational…

High Energy Astrophysical Phenomena · Physics 2017-09-06 R. D. Mellinger , F. Weber , W. Spinella , G. A. Contrera , M. Orsaria

We present a calculation of the properties of vibrational states in deformed, axially--symmetric even--even nuclei, within the framework of a fully self--consistent Quasparticle Random Phase Approximation (QRPA). The same Skyrme energy…

Nuclear Theory · Physics 2011-02-28 C. Losa , A. Pastore , T. Dossing , E. Vigezzi , R. A. Broglia

We formulate a quantum phase space for rotational and nuclear-spin states of rigid molecules. For each nuclear spin isomer, we re-derive the isomer's admissible angular momentum states from molecular geometry and nuclear-spin data,…

Quantum Physics · Physics 2026-01-14 Victor V. Albert , Eric Kubischta , Mikhail Lemeshko , Lee R. Liu