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We state and prove four types of Lieb-Robinson bounds valid for many-body open quantum systems with power law decaying interactions undergoing out of equilibrium dynamics. We also provide an introductory and self-contained discussion of the…

Quantum Physics · Physics 2019-10-08 Ryan Sweke , Jens Eisert , Michael Kastner

We prove a new lower bound on the indirect Coulomb energy in quantum mechanics in terms of the single particle density of the system. The new universal lower bound is an alternative to the classical Lieb--Oxford bound (with a smaller…

Mathematical Physics · Physics 2011-03-14 Rafael D. Benguria , Gonzalo Bley , Michael Loss

We prove Lieb-Robinson bounds for the dynamics of systems with an infinite dimensional Hilbert space and generated by unbounded Hamiltonians. In particular, we consider quantum harmonic and certain anharmonic lattice systems.

Mathematical Physics · Physics 2009-02-03 Bruno Nachtergaele , Hillel Raz , Benjamin Schlein , Robert Sims

We re-examine the justification for the imposition of regular boundary conditions on the wavefunction at the Coulomb singularity in the treatment of the hydrogen atom in non-relativistic quantum mechanics. We show that the issue of the…

High Energy Physics - Theory · Physics 2007-05-23 C. J. Fewster

We discuss the problem of finding an upper bound for the number of equilibrium points of a potential of several fixed point charges in R^n. This question goes back to J.C.Maxwell and M.Morse. Using fewnomial theory we show that for a given…

Mathematical Physics · Physics 2007-05-23 Andrei Gabrielov , Dmitry Novikov , Boris Shapiro

When particles interact via two-body short-range central potential wells, binding can occur for some critical values of the coupling constants. Using the envelope theory, upper bounds for critical coupling constants are computed for quantum…

Quantum Physics · Physics 2025-06-13 Clara Tourbez , Claude Semay , Cyrille Chevalier

We provide a simple proof of the Lieb-Robinson bound and use it to prove the existence of the dynamics for interactions with polynomial decay. We then use our results to demonstrate that there is an upper bound on the rate at which…

Mathematical Physics · Physics 2007-05-23 Bruno Nachtergaele , Yoshiko Ogata , Robert Sims

We consider an analogue of the Lieb-Thirring inequality for quantum systems with homogeneous repulsive interaction potentials, but without the antisymmetry assumption on the wave functions. We show that in the strong-coupling limit, the…

Mathematical Physics · Physics 2021-03-31 Kevin Kögler , Phan Thành Nam

Model independent constraints on the mass of extra neutral gauge bosons and their couplings to charged leptons are given for LEP~II and a 500\,GeV $e^+e^-$ collider. Analytical exclusion limits are derived in the Born approximation. The…

High Energy Physics - Phenomenology · Physics 2009-10-22 Arnd Leike

In this note, we address some issues concerning the accurate pressure calculation of Coulomb systems with periodic boundary conditions. First, we prove that the formulas for the excess part of the pressure with Ewald summation also reduce…

Computational Physics · Physics 2024-06-11 Lei Li , Jiuyang Liang , Zhenli Xu

We present a method for treatment of three charged particles. The proposed method has universal character and is applicable both for bound and continuum states. A finite rank approximation is used for Coulomb potential in three-body system…

Nuclear Theory · Physics 2010-12-16 Vladimir B. Belyaev , Andrey A. Naumkin

We review a recently proven Lieb-Robinson bound for general, many-body quantum systems with bounded interactions. Several basic examples are discussed as well as the connection between commutator estimates and quasi-locality.

Mathematical Physics · Physics 2017-08-23 Robert Sims

We give upper bounds for the number of spin 1/2 particles that can be bound to a nucleus of charge Z in the presence of a magnetic field B, including the spin-field coupling. We use Lieb's strategy, which is known to yield N_c<2Z+1 for…

Mathematical Physics · Physics 2009-10-31 Robert Seiringer

A lower bound on the grand partition function of a classical charge-symmetric system is adapted to the neutral grand canonical ensemble, in which the system is constrained to have zero total charge. This constraint permits us to consider…

Mathematical Physics · Physics 2019-11-26 Jeffrey P. Thompson , Isaac C. Sanchez

Following a recent method introduced by C. Hainzl, J.P. Solovej and the second author of this article, we prove the existence of the thermodynamic limit for a system made of quantum electrons, and classical nuclei whose positions and…

Mathematical Physics · Physics 2012-07-11 Xavier Blanc , Mathieu Lewin

We derive stronger bounds on the magnetic monopole charge of the proton, and hence on non-associative quantum mechanics from measurements of the magnetic fields of the Earth, the Moon and Mars. Limits are several orders of magnitude…

General Physics · Physics 2019-05-17 Andrea Addazi , Antonino Marciano

The eigenvalue absorption for a many-particle Hamiltonian depending on a parameter is analyzed in the framework of non--relativistic quantum mechanics. The long--range part of pair potentials is assumed to be pure Coulomb and no restriction…

Mathematical Physics · Physics 2008-07-21 D. K. Gridnev

A lower bound is derived for the boundary entropy s = ln g of a 1+1d quantum critical system with boundary, under the conditions that the bulk conformal central charge c is >=1 and the most relevant bulk scaling dimension is >(c-1)/12. This…

High Energy Physics - Theory · Physics 2015-06-05 Daniel Friedan , Anatoly Konechny , Cornelius Schmidt-Colinet

The eigenvalue absorption for a many-particle Hamiltonian depending on a parameter is analyzed in the framework of non-relativistic quantum mechanics. The long-range part of pair potentials is assumed to be pure Coulomb and no restriction…

Mathematical Physics · Physics 2012-10-23 Dmitry K. Gridnev

We consider again stationary solutions to the spherically symmetric Einstein--Maxwell--Klein--Gordon system, commonly known as ``charged boson stars'', originally studied by Jetzer and Van Der Bij. We construct families of charged boson…

General Relativity and Quantum Cosmology · Physics 2023-03-08 José Damián López , Miguel Alcubierre