Statistical Mechanics Conference
94th Statistical Mechanics Conference
Wednesday, May 18, 2005 at -
Conference Program
SUNDAY, DECEMBER 18, 20058:00 - 9:00
Breakfast and Registration
9:00 - 9:20
P. Hohenberg, New York University,
The Foundations of Quantum Mechanics: an Update
9:20 - 9:40
R. Balian, CEA-Saclay,
Quantum Measurement, a Problem of Statistical Mechanics
9:40 - 10:00
N. Berker, Koc University and M.I.T.,
New Phases, Superfluid Weights, and Free Carrier
Densities: Renormalization-Group Theory of Electronic Models
10:00 - 10:20
N. Andrei, Rutgers University,
Nonequilibrium Transport in Quantum Impurity Systems (exact results)
10:20 - 10:50
Coffee
10:50 - 11:10
D. Nelson, Harvard University,
Two Dimensional Hydrodynamics: Can Cell Membranes Sense Walls?
11:10 - 11:30
J. Banavar, Penn State University,
Patterns in Ecology -- a Statistical Mechanics Perspective
11:30 - 11:50
R. Lipowsky, Max-Planck Institute,
Activity Patterns on Scale-Free Networks
11:50 - 12:10
J. Chayes, Microsoft,
Controlling the Spread of Viruses on Power-Law Networks
12:10 - 12:40
L. Barabasi, Notre Dame University,
The Nature of Time in Complex Networks
12:40 - 2:10
Lunch
2:10 - 2:30
F. Wu, Northeastern University,
Two-point Impedance in an Impedance Network: A New Formulation
2:30 - 2:50
C. Borgs, Microsoft,
The Random Energy Conjecture for Number Partitioning and Spin Glasses
2:50 - 3:10
I. Giardina, University of Rome,
Metastability and Supersymmetry in Glassy Systems
3:10 - 3:30
A. Theumann, Universidade Federal do Rio Grande
do Sul, Brazil,
Quantum Spherical Spin Glass: Supersymmetry and Annealing
3:30 - 4:00
Coffee
4:00 - 4:30
P. Young, University of California Santa Cruz,
Do Spin Glasses Have a Phase Transition in a Magnetic Field?
4:30 - 5:00
J.-P. Bouchaud, CEA-Saclay,
Cooperative Lengthscales in Glass-Formers: Theoretical Motivations
and Empirical Evidence
5:00 - 5:30
J. Langer, University of California, Santa Barbara,
Dynamics of the Glass Transition
5:30 - 6:00
E. Brezin, ENS,
Historical Perspective on Quantum Field Theory
6:05 - 8:00
COCKTAILS, HARPSICHORD CONCERT BY KUMIKO IMAMURA IN
THE FIBER OPTICS BUILDING
COCKTAILS AND CONCERT ARE SPONSORED BY SPRINGER,
PUBLISHER OF THE JOURNAL OF STAT. PHYS. AND COMMUNICATIONS
IN MATH. PHYS. THEY ARE DEDICATED TO CIRANO DE DOMINICIS AND
PAUL MARTIN. ALL ARE INVITED
7:45
BANQUET DINNER (Reservations Required)
MONDAY, DECEMBER 19, 2005
8:00 - 8:40
Breakfast and Registration
8:40 - 10:15
Short Talks - Session A
10:15-10:45
Coffee
10:45 - 11:05
J. Zinn-Justin, CEA-Saclay,
The Critical Temperature of the Weakly Interacting Bose Gas
11:05 - 11:35
A. G. Yodh, University of Pennsylvania,
Melting in Temperature Sensitive Suspensions
11:35 - 11:55
P. Winkler, Dartmouth College,
Fluid/solid Transition in a Hard-core System
11:55 - 12:35
Human Rights and Social Responsibilities of Scientists
J. Hirsch, University of California, San Diego,
Why are Physicists Silent? The Dangers of New US Nuclear Weapons Policies
J. Lebowitz, Human Rights of Scientists and Academics
12:35 - 2:05
Lunch
2:05 - 2:25
H. W. Diehl, Universitaet Duisburg-Essen,
Casimir Effect in the Presence of van-der Waals-Type Interactions
2:25 - 2:45
J. Hirsch, University of California, San Diego,
Electric Fields in Superconductors: an Explanation of the Tao Effect
2:45 - 3:05
B. Shraiman, University of California, Santa Barbara,
Physics and Biology of Growth
3:05 - 3:35
H. Orland, CEA-Saclay,
RNA Folding and Large N Matrix Field Theory
3:35 - 4:05
Coffee
4:05 - 4:25
C. Jarzynski, Los Alamos National Laboratory,
Microscopic Reversibility, Macroscopic Irreversibility, and
Nonequilibrium Work Theorems
4:25 - 4:45
D. Richards, Penn State University,
Higher-Order Generalizations of the Gaussian Correlation Conjecture
4:45 - 5:05
A. Erzan, Istanbul Technical University,
Dynamics on Random Content Based Boolean Networks
5:05 - 5:25
F. Haake, Universitaet Duisburg-Essen,
The Role of Chaotic Classical Orbits for Universality in Quantum Spectra
and Transport
5:25 - 6:05
A. Tremblay, Sherbrooke University,
High Temperature Superconductors: Theory without a Small Parameter
6:05
COCKTAILS AND DINNER
8:00 - 9:30
Special Session with Informal Talks:
Spin Dynamics and Spin Transport in Metals and Semiconductors
B. Halperin, Harvard University,
Broken-Symmetry Dynamics: Nematic Liquid Crystals and More
Tom Lubensky, University of Pennsylvania,
Post Enlightenment Blues
L. Kadanoff, University of Chicago,
Emergent Fields: "Do we need fermions?"
M.E. Fisher, University of Maryland
TUESDAY, DECEMBER 20, 2005
8:00 - 8:40
Breakfast and Registration
8:40 - 10:40
Short Talks - Session B
10:40 - 11:00
Coffee
11:00 - 11:20
W. Theumann, Universidade Federal do Rio Grande
do Sul, Brazil,
Sequence Processing in Feed-Forward Layered Neural Networks
11:20 - 11:40
L. S. Young, New York University,
Nonequilibrium Steady States for Some Hamiltonian and Stochastic Models
11:40 - 12:00
K. Mallick, CEA-Saclay,
Spectral Properties of the Asymmetric Exclusion Process
12:00 - 12:20
M. Evans, University of Edinburgh,
Factorised Steady States and Condensation Transitions
12:20 - 1:30
Lunch
1:30 - 1:50
O. Costin, Ohio State University,
Ionization in Time Periodic Fields of Arbitrary Strength: Rigorous Results
1:50 - 2:10
P. Contucci, Universita di Bologna,
Factorization and ultrametricity in short-range spin glasses: rigorous
and numerical results
2:10 - 2:30
S. Okounkov, Princeton University,
The Pearcey Process
2:30 - 2:50
L. Koralov, Princeton University,
Inverse Problem for Gibbs Fields
2:50 - 3:10
V. Mastropietro, University of Rome,
Anomalies and Ward Identities in Lattice Spin Models
3:10 - 3:30
Coffee
3:30
Short Talks - Session C
Abstracts for Short Talks
N. Enaki, Center of Optoelectronics, Institute of Applied Physics of Academy of Sciences of Moldova
Title:"Complex P - Representation and Fokker-Planck Equation for Driven Quasi-spin Oscillator"
Abstract:The interaction between coherent field and the system of quantum radiators (atoms, molecules ) has been the subject of studied in many researchers . The interest in this problem is due to the possibility of building the logical photonic circuits on the basis of induced phase transition by light in non-linear medium. The semi- classical and quantum approaches to this problem is examined in paper. Using - representation for master equations of two level system the steady state solutions was obtained in this paper. Taking in to account dipole-dipole interaction between the radiators and using the representation of density operator through anti-normal products of generation and annihilation atomic operators the interesting steady state quantum solutions is given in paper The remain divergences between semi-classical and quantum treatments in the definition of critical points of phase transition as function of applied intensity of electromagnetic field give us the possibility to reconsider the quantum steady states solutions of master equation for two level quantum oscillator driven by coherent field. The problem is connected with the uniqueness of such state solutions for density operator belonging to spin symmetry. This solutions are connected to various methods of representation through coherent states of this symmetry group. Using the Hostan-Primacof representation for creation and annihilation operators of quasi-spin system, and , in this paper it is found the connection between atomic quasi-spin system of radiators and the behavior of non-linear quasi-boson media driven by coherent field. The same behavior of local quantum oscillator was analyzed in paper . The existence divergences at infinity on the complex plane of representation for driven harmonic oscillator, forced many investigators to discard the Glauber-Sudarshan diagonal -representation for density matrix. The convergence of the stationary solution for density matrix was obtained via the non-diagonal boson - representation .
In this report it is analyzed the induced phase transitions in radiator subsystems (atoms, molecules) using non-diagonal representation for algebra. In according with this representation the simple Fokker-Plank equation for non-diagonal function is obtained. Solving this equation the new steady state solution for density operators of quasi spin sub-system is obtained. The solution gives as the possibility to study the behavior of operators of atomic subsystem and its quantum fluctuations. The appear divergences between the stationary solution of density operator in terms of - and - functions are analyzed Comparing this two methods it is observed that the steady state solution obtained using non diagonal-representation with anti-normal method proposed in papers drastically differ. The problem of boundary conditions and uniqueness of steady state solution is discussed. The existence of induced phase transition of connected with the transition atomic polarization from total uncorrected to correlated system of radiators as function of applied intensity of external coherent field is reconsider. The connections between quasi-classical bi-stable behavior of atomic polarization and quantum treatment are in the centre of attention of this paper.
D. F. Walls, G. J. Milburn "Quantum Optics" Springer-Verlag (1995). R. R. Puri, S. V. Lawande, Phys. Lett. A72, 200 (1979). S.Y. Kilin, Zh. Exsp. Teor.Fiz 82, 63 (1982) [Sov.Phys. JETP 55, 38 (1982)]. N. A. Enaki and V. I. Ciornea, J. Ppys. A: Mathimatical and General 34, 4601 (2001).
A. Gaudilliere, University of Rome/Rutgers
Title:"On metastability and nucleation for a diluted lattice gas under Kawasaki dynamics at low temperature"
Abstract:Please click here for abstract
S. Ji, Rutgers University
Title:"Molecular Density Functional Theory of the Living Cell"
Abstract:Please click here for abstract
E. Klotins, Institute of Solid State Physics, Riga, Latvia
Title:"Critical dynamics in models of coupled overdamped anharmonic oscillators: symplectic approach"
Abstract: Using nonlinear Fokker-Planck - imaginary time Schrodinger equation scheme with subsequent symplectic integration we present nonperturbative solutions reproducing critical dynamics as a combined effect of anharmonicity, coupling, and spatial extension. Representative examples for model Hamiltonians of overdamped anharmonic oscillators reproduce source specific critical dynamics, and have a potential for large scale modeling. Details can be fond in [1,2]. New results concern application of this approach to model Hamiltonians of growing complexity.
[1] E. Klotins, Physica E, 29, 237-242 (2005) [2] E. Klotins, [cond-mat/0508182]
A. Kolokowska, Mississippi State University
Title:"Stochastic dynamics of two-component surface growth processes that mix random deposition with other universality class growth"
Abstract:When during surface formation a random deposition (RD) and another universality class (OUC) processes occur with constant probabilities $1-p$ and $p$, respectively, the resulting two-component process belongs to the universality class of the OUC process [Kolakowska et. al., cond-mat/0509668]. Furthermore, the interface roughness obeys superuniversal scaling in $p$ with one nonuniversal exponent $delta$: height field $h to h/p^{delta}$ and time $t to t/p^{2delta}$. These processes are described by stochastic growth equations of the type $h_t = p^{delta} G(p^{delta}h) + eta$, where $eta$ is the white noise, and $G$ represents local interactions of the process in the OUC. Based on the bulk morphology, within each universality class distinction is made between elementary absorption-bulk-compact processes (with signature value $delta = 1$) and dense-or-lace-bulk processes (with either $delta › 1$ for growth with desorption processes or $delta ‹ 1$ for absorption processes that create voids). This division into universal subclasses (based on $delta$) is a necessary first step towards a consistent theory of many-component processes [Kolakowska and Novotny, cond-mat/0511688].
A. Sain, IIT - Bombay, India
Title: "Phase separation kinetics in binary fluids- an effective one fluid model"
Abstract: The phase separation kinetics of a binary fluid is studied analytically through an effective one-fluid model with a random force spectrum determined self-consistently: the rate of kinetic energy injection by the random force is consistent with the droplet coalescence rate. Our detailed results for the rates of energy dissipation and kinetic energy decay are consistent with previous numerical studies. We find that simple nontrivial scaling, if any, is associated with a new universality class where the velocity length scale follows $L_vsim t^{1/2}$.
Photos of The 94th Statistical Mechanics Conference Banquet
in Honor of Cirano De Dominicis and Paul Martin Birthday
94th Statistical Mechanics Conference (December 18-20, 2005)Click here to view powerpoint slide show of all pictures
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