Large-density fluctuations for the one-dimensional supercritical contact process

1989 ◽  
Vol 55 (3-4) ◽  
pp. 639-648 ◽  
Author(s):  
Antonio Galves ◽  
Fabio Martinelli ◽  
Enzo Olivieri
Keyword(s):  
Contact Process ◽  
Density Fluctuations ◽  
One Dimensional ◽  
Large Density ◽  
The One

scholarly journals Probing non-thermal density fluctuations in the one-dimensional Bose gas

2017 ◽  
Vol 3 (3) ◽  
Author(s):  
Jacopo De Nardis ◽  
Milosz Panfil ◽  
Andrea Gambassi ◽  
Leticia Cugliandolo ◽  
Robert Konik ◽  
...  
Keyword(s):  
Spatial Dimension ◽  
Bose Gas ◽  
Density Fluctuations ◽  
Dynamical Structure ◽  
Many Body ◽  
Initial State ◽  
One Dimensional ◽  
Fluctuation Dissipation ◽  
Quantum Integrable Models ◽  
The One

Quantum integrable models display a rich variety of non-thermal excited states with unusual properties. The most common way to probe them is by performing a quantum quench, i.e., by letting a many-body initial state unitarily evolve with an integrable Hamiltonian. At late times these systems are locally described by a generalized Gibbs ensemble with as many effective temperatures as their local conserved quantities. The experimental measurement of this macroscopic number of temperatures remains elusive. Here we show that they can be obtained for the Bose gas in one spatial dimension by probing the dynamical structure factor of the system after the quench and by employing a generalized fluctuation-dissipation theorem that we provide. Our procedure allows us to completely reconstruct the stationary state of a quantum integrable system from state-of-the-art experimental observations.

On the critical infection rate of the one-dimensional basic contact process: numerical results

1988 ◽  
Vol 25 (1) ◽  
pp. 1-8 ◽  
Author(s):  
Herbert Ziezold ◽  
Christian Grillenberger
Keyword(s):  
Markov Process ◽  
Infected Cell ◽  
Infection Rate ◽  
Lower Bounds ◽  
Contact Process ◽  
Critical Value ◽  
Critical Values ◽  
One Dimensional ◽  
The One ◽  
The Right

Instead of the basic contact process on with infection rate λ we consider for m ≧ 0 the Markov process starting with ξ0(k) = 1 for k ≧ 0 and ξ0(k)= 0 for k < 0 and with changing only those k which are at most m places to the right of the left-most infected cell. For m = 0, 1,· ··, 14 direct computations give critical values which are lower bounds for the critical value of the original basic contact process.

scholarly journals Edge Fluctuations for the One Dimensional Supercritical Contact Process

1987 ◽  
Vol 15 (3) ◽  
pp. 1131-1145 ◽  
Author(s):  
Antonio Galves ◽  
Errico Presutti
Keyword(s):  
Contact Process ◽  
One Dimensional ◽  
The One

scholarly journals Revisiting the one-dimensional diffusive contact process

2007 ◽  
Vol 2007 (08) ◽  
pp. P08009-P08009 ◽  
Author(s):  
W G Dantas ◽  
M J de Oliveira ◽  
J F Stilck
Keyword(s):  
Contact Process ◽  
One Dimensional ◽  
The One

CORRELATION IDENTITIES FOR NEAREST-PARTICLE SYSTEMS AND THEIR APPLICATIONS TO ONE-DIMENSIONAL CONTACT PROCESS

1991 ◽  
Vol 05 (02) ◽  
pp. 151-159 ◽  
Author(s):  
NORIO KONNO ◽  
MAKOTO KATORI
Keyword(s):  
Order Parameter ◽  
Particle System ◽  
Contact Process ◽  
Critical Value ◽  
Particle Systems ◽  
Approximation Formula ◽  
One Dimensional ◽  
Renewal Measure ◽  
First Approximation ◽  
The One

A series of identities of correlation functions K(n1, n2, …, nN) are given in the nearest-particle system. The above correlation identities are applied to the one-dimensional contact process. The decoupling induced by a renewal measure yields the first approximation: [Formula: see text] for the critical value and [Formula: see text] for the order parameter, which makes a rigorous bound as proved by Holley and Liggett. Furthermore, introducing a new decoupling procedure, improved estimations of [Formula: see text] and [Formula: see text] are calculated.

scholarly journals Tightness for the interface of the one-dimensional contact process

Bernoulli ◽  
2010 ◽  
Vol 16 (4) ◽  
pp. 909-925 ◽  
Author(s):  
Enrique Andjel ◽  
Thomas Mountford ◽  
Leandro P.R. Pimentel ◽  
Daniel Valesin
Keyword(s):  
Contact Process ◽  
One Dimensional ◽  
The One

scholarly journals Graph Constructions for the Contact Process with a Prescribed Critical Rate

2021 ◽  
Author(s):  
Stein Andreas Bethuelsen ◽  
Gabriel Baptista da Silva ◽  
Daniel Valesin
Keyword(s):  
Contact Process ◽  
Critical Value ◽  
Critical Rate ◽  
Bounded Degree ◽  
One Dimensional ◽  
Local Survival ◽  
The One ◽  
Global And Local

AbstractWe construct graphs (trees of bounded degree) on which the contact process has critical rate (which will be the same for both global and local survival) equal to any prescribed value between zero and $$\lambda _c({\mathbb {Z}})$$ λ c ( Z ) , the critical rate of the one-dimensional contact process. We exhibit both graphs in which the process at this target critical value survives (locally) and graphs where it dies out (globally).

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