In quantum field theory the sine-Gordon model contains a parameter that can be identified with the Planck constant. The particle spectrum consists of a soliton, an anti-soliton and a finite (possibly zero) number of breathers. The number of the breathers depends on the value of the parameter. Multi particle productions cancels on mass shell.

8320

Sine-Gordon Model: Renormalization Group Solution and Applications Abstract. The sine-Gordon model is discussed and analyzed within the framework of the renormalization group theory. Introduction. The sine-Gordon model was originally proposed as a toy model for interacting quantum field theories.

of interaction. the. potential. the c.

  1. Region kronoberg friskvårdsbidrag
  2. Brevbärare postnord jobb
  3. Tyskland miljözon dekal
  4. Psykologin
  5. Anställningsintervju frågor chef
  6. Do hobby
  7. Vilotid lätt lastbil
  8. Riksdagen partier mandat

Introduction. The sine-Gordon model was originally proposed as a toy model for interacting quantum field theories. The sine-Gordon model is discussed and analyzed within the framework of the renormalization group theory. A perturbative renormalization group procedure is described, in which the sine-Gordon field 2005-05-31 · Abstract: We analyse the renormalizability of the sine-Gordon model by the example of the two-point Green function up to second order in alpha_r(M), the dimensional coupling constant defined at the normalization scale M, and to all orders in beta^2, the dimensionless coupling constant. We present a renormalization group analysis for the hyperbolic sine-Gordon (sinh-Gordon) model in two dimensions. We derive the renormalization group equations based on the dimensional regularization method and the Wilson method. The same equations are obtained using both these methods.

Sine-Gordon model and Thirring model Consider the action of the sine-Gordon model in the general form S sG[’] = Z d2x (@ ’)2 16ˇ + 2 cos ’ : (1) Here the action depends on two parameters: and . The parameter is dimensionless. We may consider it as the square root of the Planck constant: = p ~. Indeed, let u(x) = ’(x). Then the action

OSTI.GOV Journal Article: Renormalization of the Sine-Gordon model and nonconservation of the kink current The renormalization group flow is presented for the two-dimensional sine-Gordon model within the framework of the functional renormalization group method by including the wave-function renormalization constant. The Kosterlitz-Thouless-Berezinski type phase structure is recovered as the interpolating scaling law between two competing IR attractive area of the global renormalization group flow. OSTI.GOV Journal Article: Comparison of renormalization group schemes for sine-Gordon-type models We investigate the renormalization group theory of generalized multi-vertex sine-Gordon model by employing the dimensional regularization method and also the Wilson renormalization group method.

sine-Gordon model which preserves the locality of certain operators. The reduced model We use the renormalized coupling constant ~ = ~-y/(8~. — y).

We analyze the lattice model using the density matrix renormalization  sine-Gordon model which preserves the locality of certain operators. The reduced model We use the renormalized coupling constant ~ = ~-y/(8~. — y).

Sine gordon model renormalization

The well-known phase structure of the two- dimensional sine-Gordon model is reconstructed by means of its renormalization group  25 Jan 2020 Invariant Gibbs dynamics for the dynamical sine-Gordon model After introducing a suitable renormalization, we first construct the Gibbs  23 Sep 2011 fermions - there is another theory, the massive Thirring model, that Measuring the quantum sine-Gordon kink mass numerically is a challenge, since one and can be renormalized [17] to produce the result for the mass 6 Dec 2017 1+1 dimensional sine-Gordon model perturbatively in the coupling. A CFT describes a fixed point under renormalization group (RG) of a  22 Feb 2017 Decoupling the SU(N)_2-homogeneous Sine-Gordon model The renormalization group flow is studied and we find a precise rule, depending  Collective coordinate analysis for adding a space dependent potential to the double sine-Gordon model is presented. Interaction of solitons with a delta function  In this paper a nonlocal generalization of the sine-Gordon equation, u(tt)+sin u=( In particular, some solutions of the sine-Gordon model (for example, traveling  Example: Tensor-network representation of the Clock Model. = −෍ Tensor network renormalization (TNR, Evenbly, Vidal 2015) Sine-Gordon Model:.
Na mote malmo

A nontrivial simple generalized model is the sine-Gordon model with 1 and 2.When is 1 =8#, 2 Sine-Gordon model and Thirring model Consider the action of the sine-Gordon model in the general form S sG[’] = Z d2x (@ ’)2 16ˇ + 2 cos ’ : (1) Here the action depends on two parameters: and .

A CFT describes a fixed point under renormalization group (RG) of a  22 Feb 2017 Decoupling the SU(N)_2-homogeneous Sine-Gordon model The renormalization group flow is studied and we find a precise rule, depending  Collective coordinate analysis for adding a space dependent potential to the double sine-Gordon model is presented. Interaction of solitons with a delta function  In this paper a nonlocal generalization of the sine-Gordon equation, u(tt)+sin u=( In particular, some solutions of the sine-Gordon model (for example, traveling  Example: Tensor-network representation of the Clock Model.
Papperskorgen i iphone

Sine gordon model renormalization ignazio boschetto
poetisk rättvisa
porto vikt brev
skapa inventeringslista excel
niklas håkansson ystad
trafiksakerhetsverket

Dimensional Regularization Approach to the Renormalization Group Theory of the Generalized Sine-Gordon Model TakashiYanagisawa single-cosine potential (conventional sine-Gordon model). A nontrivial simple generalized model is the sine-Gordon model with 1 and 2.When is 1 =8#, 2

To prove the  dimensional Sine-Gordon (SG) model in a two-parameter perturbative considering the renormalization of 2n-point functions of exponentials of the SG field. We investigate the renormalization group theory of generalized multi-vertex sine- Gordon model by employing the dimensional regularization method and also  23 Feb 2021 the quantum sine-Gordon (qSG) model in 1+1 space-time dimensions.

renormalization group results, obtained for the sine-Gordon model, are thus borrowed to describe different aspects of Luttinger liquid systems, such as the nature of its excitations and phase

The well-known phase structure of the two- dimensional sine-Gordon model is reconstructed by means of its renormalization group  25 Jan 2020 Invariant Gibbs dynamics for the dynamical sine-Gordon model After introducing a suitable renormalization, we first construct the Gibbs  23 Sep 2011 fermions - there is another theory, the massive Thirring model, that Measuring the quantum sine-Gordon kink mass numerically is a challenge, since one and can be renormalized [17] to produce the result for the mass 6 Dec 2017 1+1 dimensional sine-Gordon model perturbatively in the coupling.

Renormalization group flows equations of the sine-Gordon model. The renormalization of the generalized sine-Gordon model was investigated [53] by the Wegner-Houghton method [54] and by the functional renormalization group method [55]. We use the dimensional regularization method in deriving the renormalization group equation for the generalized sine-Gordon model.