Results 1 to 10 of about 129,667 (103)

Effective theory for matter in non-perturbative cavity QED

SciPost Physics Lecture Notes, 2022
Starting from a general material system of $N$ particles coupled to a cavity, we use a coherent-state path integral formulation to produce a non-perturbative effective theory for the material degrees of freedom. We tackle the effects of image charges,
Juan Román-Roche, David Zueco
doaj   +1 more source

Scrambling in Yang-Mills

Journal of High Energy Physics, 2021
Acting on operators with a bare dimension ∆ ∼ N 2 the dilatation operator of U(N) N $$ \mathcal{N} $$ = 4 super Yang-Mills theory defines a 2-local Hamiltonian acting on a graph.
Robert de Mello Koch, Eunice Gandote, Augustine Larweh Mahu   +2 more
doaj   +1 more source

A degeneracy bound for homogeneous topological order

SciPost Physics, 2021
We introduce a notion of homogeneous topological order, which is obeyed by most, if not all, known examples of topological order including fracton phases on quantum spins (qudits). The notion is a condition on the ground state subspace, rather than on
Jeongwan Haah
doaj   +1 more source

Spin-induced orbital frustration in a hexagonal optical lattice

Physical Review Research, 2021
Complex lattices provide a versatile ground for fascinating quantum many-body physics. Here, we propose an exotic mechanics for generating orbital frustration in hexagonal lattices. We study two-component (pseudospin-1/2) Bose gases in p-orbital bands of
Yongqiang Li, Jianmin Yuan, Xiaoji Zhou, Xiaopeng Li   +3 more
doaj   +1 more source

Timescales of Chaos in the Inner Solar System: Lyapunov Spectrum and Quasi-integrals of Motion

Physical Review X, 2023
Numerical integrations of the Solar System reveal a remarkable stability of the orbits of the inner planets over billions of years, in spite of their chaotic variations characterized by a Lyapunov time of only 5 million years and the lack of integrals of
Federico Mogavero, Nam H. Hoang, Jacques Laskar   +2 more
doaj   +1 more source

Anderson localization of emergent quasiparticles: Spinon and vison interplay at finite temperature in a Z_{2} gauge theory in three dimensions

Physical Review Research, 2022
Fractional statistics of quasiparticle excitations often plays an important role in the detection and characterization of topological systems. In this paper, we investigate the case of a three-dimensional (3D) Z_{2} gauge theory, where the excitations ...
Minho Kim, Giuseppe De Tomasi, Claudio Castelnovo   +2 more
doaj   +1 more source

Hamiltonian reduction of SU(2) Dirac-Yang-Mills mechanics [PDF]

, 1997
The SU(2) gauge invariant Dirac-Yang-Mills mechanics of spatially homogeneous isospinor and gauge fields is considered in the framework of the generalized Hamiltonian approach.
A. Das, A. G. Izergin, A. M. Khvedelidze, B. Dahmen, C. N. Yang, D. Blaschke, D. M. Gitman, E. T. Newman, E. T. Whittaker, G. K. Savvidy, H. M. Asatryan, I. A. Batalin, I. M. Singer, I. M. Singer, J. Goldstone, J. Marsden, L. D. Faddeev, L. V. Prokhorov, M. A. Soloviev, M. F. Atyah, M. Henneaux, M. J. Gotay, M. Lavelle, M. S. Narasimhan, N. H. Christ, O. Babelon, P. A. M. Dirac, P. A. M. Dirac, P. A. M. Dirac, P. G. Bergman, P. Olver, S. A. Gogilidze, S. A. Gogilidze, S. G. Matinyan, S. Shanmugadhasan, V. Baluni, V. N. Gribov, V. N. Pervushin, V. V. Vlasov, Yu. Simonov   +39 more
core   +3 more sources

Hamiltonian structure of Hamiltonian chaos [PDF]

, 1997
From a kinematical point of view, the geometrical information of hamiltonian chaos is given by the (un)stable directions, while the dynamical information is given by the Lyapunov exponents.
A.M. Boozer, Aizawa, Arnold, Arnold, Boozer, Boozer, Cary, Eckmann, Habib, Kolmogorov, Meiss, Moser, Oseledec, Pöschel, Ruelle, Schutz, Smith, Tang, Tang, X.Z. Tang   +19 more
core   +2 more sources

Integrability and level crossing manifolds in a quantum Hamiltonian system [PDF]

, 1998
We consider a two-spin model, represented classically by a nonlinear autonomous Hamiltonian system with two degrees of freedom and a nontrivial integrability condition, and quantum mechanically by a real symmetric Hamiltonian matrix with blocks of ...
E. Magyari, Gerhard Müller, H.-D. Meyer, K. Kendig, L. E. Reichl, M. C. Gutzwiller, M. Månson, N. Srivastava, N. Srivastava, P. Griffiths, S. Weigert, S. Weigert, Vyacheslav V. Stepanov   +12 more
core   +3 more sources

Excited-state quantum phase transitions in systems with two degrees of freedom: III. Interacting boson systems [PDF]

, 1928
The series of articles [Ann. Phys. 345, 73 (2014) and 356, 57 (2015)] devoted to excited-state quantum phase transitions (ESQPTs) in systems with $f=2$ degrees of freedom is continued by studying the interacting boson model of nuclear collective dynamics
Macek, Michal, Stránský, Pavel, Leviatan, Amiram, Cejnar, Pavel   +3 more
core   +6 more sources