Results 11 to 20 of about 155,960 (333)

Vulcanization and critical exponents [PDF]

open access: greenJournal de Physique Lettres, 1979
We consider a particular case of vulcanization of polymer chains in a semi dilute solution where a concentration p of vulcanizing agent has been added. This problem is equivalent to the percolation of elements having a functionality f depending both on the length N of the initial chains and on the monomer concentration C. Our approach allows us to take
M. Daoud
openaire   +4 more sources

Critical Exponents and Elementary Particles [PDF]

open access: greenCommunications in Mathematical Physics, 1977
Particles are shown to exist for a.e. value of the mass in single phase φ4 lattice and continuum field theories and nearest neighbor Ising models. The particles occur in the form of poles at imaginary (Minkowski) momenta of the Fourier transformed two point function.
Glimm, J., Jaffe, A.
openaire   +4 more sources

Critical exponent and discontinuous nonlinearities [PDF]

open access: bronzeDifferential and Integral Equations, 1993
We prove existence of a positive solution to the problem \[ -\Delta u=| u|^{2^*- 2} u+bh (u-a), \quad u(x)>0 \;\;\text{in }\Omega, \quad u(x)=0\;\;\text{on } \partial\Omega, \tag{1} \] where \(\Omega\) is a bounded regular open set \(\subset \mathbb{R}^ N\), \(2^*= {{2N} \over {n-2}}\) is the critical Sobolev exponent, \(h\) is the Heaviside function ...
Marino Badiale
openaire   +5 more sources

The critical exponent functions [PDF]

open access: yesComptes Rendus. Mathématique, 2022
The critical exponent of a finite or infinite word $w$ over a given alphabet is the supremum of the reals $\alpha $ for which $w$ contains an $\alpha $-power. We study the maps associating to every real in the unit interval the inverse of the critical exponent of its base-$n$ expansion. We strengthen a combinatorial result by J.D.
Corona, D, Della Corte, A
openaire   +2 more sources

Quantum computing critical exponents [PDF]

open access: yesPhysical Review A, 2021
16 pages, 5 ...
Dreyer, Henrik   +2 more
openaire   +2 more sources

Unifying the Anderson transitions in Hermitian and non-Hermitian systems

open access: yesPhysical Review Research, 2022
Non-Hermiticity enriches the tenfold Altland-Zirnbauer symmetry class into the 38-fold symmetry class, where critical behavior of the Anderson transitions (ATs) has been extensively studied recently.
Xunlong Luo   +4 more
doaj   +1 more source

Probing phase structure of black holes with Lyapunov exponents

open access: yesJournal of High Energy Physics, 2022
We conjecture that there exists a relationship between Lyapunov exponents and black hole phase transitions. To support our conjecture, Lyapunov exponents of the motion of particles and ring strings are calculated for Reissner-Nordström-AdS black holes ...
Xiaobo Guo   +3 more
doaj   +1 more source

On critical exponents for self-similar collapse

open access: yesJournal of High Energy Physics, 2020
We explore systematically perturbations of self-similar solutions to the Einstein-axion-dilaton system, whose dynamics are invariant under spacetime dilations combined with internal 𝔰𝔩(2, ℝ) transformations.
Riccardo Antonelli, Ehsan Hatefi
doaj   +1 more source

Tricritical phenomena in holographic chiral phase transitions

open access: yesJournal of High Energy Physics, 2022
We study critical phenomena at a tricritical point associated with a chiral phase transition which emerges in the D3/D7 model in the presence of a finite baryon number density and an external magnetic field.
Masataka Matsumoto
doaj   +1 more source

Derivation of the Critical Point Scaling Hypothesis Using Thermodynamics Only

open access: yesEntropy, 2020
Based on the foundations of thermodynamics and the equilibrium conditions for the coexistence of two phases in a magnetic Ising-like system, we show, first, that there is a critical point where the isothermal susceptibility diverges and the specific heat
Víctor Romero-Rochín
doaj   +1 more source

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