IV. International Symposium

QUANTUM THEORY AND SYMMETRIES

with

VI. International Workshop

LIE THEORY AND ITS APPLICATIONS IN PHYSICS

and

Alexander von Humboldt Foundation Workshop

"Quantum Systems Related to Noncommutative Geometries,

Their Symmetries and Evolution Equations"

 

15 - 21 August 2005, Varna, Bulgaria
at
Varna Free University




 

 

The Scientific Programme

Some talks are marked with  *  - this means a change w.r.t.  the booklet

with Programme and Abstracts which is already in print.

 

 

Plenary Sessions

Aula Maxima

Date & Time

Name

Title

16 August

 

 

09:30-09:45

Opening

 

 

Chairperson: Dobrev

 

09:45-10:30

Fredenhagen, Klaus

On the locality problem on noncommutative spacetime 

10:30-11:00

Coffee break

 

 

Chairperson: King

 

11:00-11:45

Sudbery, Tony

The power of entanglement 

11:45-12:30

Beige, Almut

Distributed quantum computing 

17 August

 

  

 

Chairperson: Bars

 

09:00-09:45

Randjbar-Daemi, Seifallah

Aspects of co-dimension 2 brane physics  

09:45-10:30

Huebschmann, Johannes

Quantization in the presence of singularities (AvH)  

10:30-11:00

Coffee break

 

 

Chairperson: Dragovich

 

11:00-11:45

Todorov, Ivan

Higher dimensional vertex algebras and rational conformal field theory models  

11:45-12:30

Zarembo, Konstantin  *

Bethe Ansatz in AdS/CFT correspondence 

18 August

 

 

 

Chairperson: Mateev

 

09:00-09:45

Ferrara, Sergio

Spontaneously broken supergravity: old and new facts (AvH)  

09:45-10:30

Freidel, Laurent

Effective field theory from 3d quantum gravity 

10:30-11:00

Coffee break

 

11:00-12:30

Panel Discussion

"Quantum Theory and Symmetries

in the XXI Century"

19 August

 

 

 

Chairperson: Beisert

 

09:00-09:45

Bonora, Loriano

Singular Calabi-Yau geometries and matrix models 

09:45-10:30

Sokatchev, Emeri *

Protection mechanism in beta-deformed N=4 super-Yang-Mills theory 

10:30-11:00

Coffee break

 

 

Chairperson: Palla

 

11:00-11:45

Zoupanos, George

Classical and quantum reduction of couplings (AvH)

11:45-12:30

Miller, Willard

Second order superintegrable systems in conformally flat spaces 

20 August

 

 

 

Chairperson: del Olmo

 

09:00-09:45

Nicolai, Hermann

The E10 sigma model  

09:45-10:30

Grosse, Harald

Noncommutative quantum field theory and renormalization  

10:30-11:00

Coffee break

 

 

Chairperson: Rudolph

 

11:00-11:45

Goldin, Gerald  *

Local current algebras: early ideas and new quantum-theoretical directions  (LT6)

11:45-12:30

Woronowicz, Stanislaw

Inhomogeneous quantum groups (AvH,LT6)  




 

Parallel Sessions

 

Tuesday, August 16

 

Symmetries in String & Brane Theories

Hall A (307)

Time

Name

Title

 

Chairperson: Sezgin

 

15:30-16:10

Bars, Itzhak

Twistor superstring, symmetries, and generalizations 

16:10-16:40

Wijewardhana, Rohana

Analysis of small black holes in brane theories 

16:40-17:00

Gogberashvili, Merab  *

Localization of fermions on the brane 

17:00-17:30

Coffee break

 

 

Chairperson: Wijewardhana

 

17:30-18:10

Matsuo, Yutaka

Vacuum open/closed string field theory and boundary states 

18:10-18:40

Kawai, Shinsuke

Fractional space-like branes 

18:40-19:10

Wali, Kameshwar *

Clash of symmetries in a brane world picture  

 


 

Noncommutative and Gauge Theories

Hall B (207)

Time

Name

Title

 

Chairperson: Gromov

 

15:30-16:00

Sasakura, Naoki *

An invariant approach to dynamical fuzzy spaces with a three-index variable  

16:00-16:30

Maslanka, Pawel

Space-time symmetry of noncommutative field theory 

16:30-17:00

Chandrasekhar, Bhamidipati

N=2 Sigma model action on non(anti)-commutative superspace  

17:00-17:30

Coffee break

 

 

Chairperson: Sasakura

 

17:30-18:00

Sogami, Ikuo *

Gauge theory of flavor physics 

18:00-18:30

Cvetkovic,    Branislav  *

Canonical structure of the topological 3D gravity with torsion 

18:30-19:00

Babourova, Olga *

The gauge field theory for Poincare-Weyl group  

 


 

Generalized Spaces and Functions (LT-6)

Hall C (221)

Time

Name

Title

 

Chairperson: Leandre  

 

15:30-16:10

Dragovich, Branko

p-adic and adelic superanalysis 

16:10-16:40

Cotfas, Nicolae

Symmetry properties of hypergeometric type special functions 

16:40-17:00

Balaz, Antun

Generalization of Euler`s summation formula to path integrals 

17:00-17:30

Coffee break

 

 

Chairperson: Cotfas

 

17:30-18:00 *

Omori, Hideki

Strange world of q-number functions  

18:00-18:30 *

Gromov, Nikolaj

Noncommutative analogs of space-time 

18:30-19:00 *

Nikolic, Bojan

Dilaton field contribution to the noncommutativity parameter 

 


 

Foundations of Quantum Theory

Hall D (upper meeting room)

Time

Name

Title

 

Chairperson: Doebner

 

15:30-16:00

Bracken, Tony

What is semiquantum mechanics?  

16:00-16:30

Tolar, Jiri

On distinguishability of different preparations of mixed states 

16:30-17:00

Singh, Tejinder Pal

Quantum mechanics without spacetime: A case for noncommutative geometry  (AvH)

17:00-17:30

Coffee break

 

 

Chairperson: Singh

 

17:30-18:10

Doebner, Heinz-Dietrich

An intrinsic nonlinear structure in quantum mechanics and a corresponding nonlinear evolution equations  (AvH)

18:10-18:40

Johansson, Per-Ivar

Inference of Schroedinger equation from classical wave mechanics  

18:40-19:10

Zheng-Johansson, Jane

Depolarization radiation force in a dielectric medium and its analogy with gravity  

 


 

Symmetries in Atomic and Nuclear Physics

Hall E (lower meeting room)

Time

Name

Title

 

Chairperson: Cseh

 

15:30-16:00

Wipf, Andreas

Algebraic solution of the supersymmetric hydrogen atom  

16:00-16:30

Aroyo, Mois Ilia

Symmetry considerations in the determination of transition paths in reconstructive phase transitions  

16:30-17:00

Bonatsos, Dennis

Critical point symmetries in nuclei  

17:00-17:30

Coffee break

 

 

Chairperson: Bonatsos

 

17:30-18:00

Cseh, Jozsef

Symmetries and their breakings in nuclear structure studies 

18:00-18:20

Darai, Judit

Quasidynamical symmetry and nuclear clusterization 

 

18:20-18:50*

 

Georgieva, Ana

Analytical modeling of significant many-body nuclear interactions in the framework of a traditional 'two-body' q-deformed approach  

18:50-19:10*

Jurciukonis, Darius

Quantum SU(3) Skyrme model for arbitrary representation

 



Parallel Sessions

Wednesday, August 17

 

Quantum Gravity, Strings and Related Topics

Hall A (307)

Time

Name

Title

 

Chairperson: Faraggi  

 

15:30-16:10

Kostov, Ivan

Thermal flow in the gravitational O(n) 

16:10-16:40

Petkova, Valentina

Ground ring versus loop gas in 2d quantum gravity 

16:40-17:00

Hamamoto, Shinji

Possible nonlinear completion of massive gravity 

17:00-17:30

Coffee break

 

 

Chairperson: Matsuo

 

17:30-18:00

Lehnert, Ralf

Aspects of spacetime-symmetry violations 

18:00-18:30

Faraggi, Alon

Fictitious dimensions 

18:30-19:00

Ishimoto, Yukitaka

Logarithmic correlation functions and moduli integrals in minimal string theory 

19:00-19:20

Vernov, Sergey

Exact soluble phantom cosmological models inspired by the string field theory  

 


 

Integrable Systems (1)

Hall B (207)

Time

Name

Title

 

Chairperson: Helminck

 

15:30-16:00

Feher, Laszlo

Spin Calogero models and dynamical $r$-matrices 

16:00-16:30

Posta, Severin

Matrix integrable Calogero models 

16:30-17:00

Stern, Ady

Interference and transport in non-abelian quantum Hall states  

17:00-17:30

Coffee break

 

 

Chairperson: Feher

 

17:30-18:00

Helminck, Gerard

An infinite dimensional flag variety relating matrix hierarchies and Toda-type hierarchies 

18:00-18:30

Mizoguchi, Shunya

On Unitary/Hermitian Duality in Matrix Models  

18:30-19:00

Yoshida, Kentaroh

Membrane Fuzzy Sphere Dynamics in Plane-Wave Matrix Model 

 


 

Lattice and Gauge Theories

Hall C (221)

Time

Name

Title

 

Chairperson: Schmidt

 

15:30-16:10

Poppitz, Erich

Recent developments in lattice supersymmetry 

16:10-16:40

Sugino, Fumihiko

A lattice formulation of super Yang-Mills theories with exact supersymmetry  

16:40-17:00

Teh, Rosy

A note on the Julia-Zee dyon solution 

17:00-17:30

Coffee break

 

 

Chairperson: Poppitz

 

17:30-18:10

Rudolph, Gerd

On the observable algebra and its representations for lattice QCD  (AvH)

18:10-18:40

Schmidt, Matthias

On the reduced configuration space and the reduced phase space of classical lattice chromodynamics   (AvH)

18:40-19:00

Just, Kurt

Non-preons for the standard model 

19:00-19:20

Lukashevich, Sviatlana

The equations of motion and energy-momentum tensor for particles with polarizabilities in the electromagnetic field  

 


 

Symmetries in Chemistry, Biology and other Sciences

Hall D (upper meeting room)

Time

Name

Title

 

Chairperson: Papadopolos

 

15:30-16:10

Twarock, Reidun

Assembly models for viruses based on tiling theory  

16:10-16:40

Popovych, Roman

Admissible transformations and normalized classes of differential equations  (AvH)

16:40-17:00

Stoimenov, Stoimen

Dynamical symmetries of semi-linear Schroedinger and diffusion equations (AvH)

17:00-17:30

Coffee break

 

 

Chairperson: Popovych

 

17:30-18:00

Radosz, Andrzej

Photo-induced compounds and phase transformation of a new type 

18:00-18:30

Angelova, Maia

Classification of Escherichia Coli genes based on gene regulation 

18:30-18:50

Ivanova, Nataliya

Hierarchy of conservation laws and potential symmetries of diffusion-convection equations

18:50-19:10

Vaneeva, Olena

Potential non-classical symmetries and exact solutions of fast diffusion equation  

 


 

Structure Theory and

Infinite-Dimensional Symmetries (LT-6)

Hall E (lower meeting room)

Time

Name

Title

 

Chairperson: Tolar

 

15:30-16:00

Leandre, Remi

Rogers' fermionic Brownian motion as a distribution 

16:00-16:30

Snobl, Libor

On the classification of solvable Lie algebras with given nilradicals  

16:30-17:00

Jushenko, Ekaterina

On *-wildness of discrete groups  

17:00-17:30

Coffee break

 

 

Chairperson: Snobl

 

17:30-17:50

Reznik, Kateryna

Cartan equation as the condition of the existence of an infinite group 

17:50-18:10

Hrivnak, Jiri

Graded contractions of the Pauli graded sl(3,C) 

18:10-18:30

Novotny, Petr

On associated algebras to Lie algebra and their role in Its identification 

18:30-18:50

Vukmirovic, Srdjan

Geometry of 4-dimensional Lie groups admitting a complex product structure  

18:50-19:10

Svobodova, Milena

Normalizer of the MAD group generated by tensor product of generalized Pauli matrices 

 


 

Friday, August 19

(Super-)Conformal Field Theories

 Hall A (307)

Time

Name

Title

 

Chairperson: Klimcik

 

15:30-16:10 *

Sezgin, Ergin

An instanton solution of 4D higher spin gauge theory  

16:10-16:35 *

Grigoriev, Maxim

BRST extension of the nonlinear unfolded formalism 

16:35-17:00 *

Shaynkman, Oleg

Lagrangian formulation for free mixed-symmetry bosonic gauge fields in $AdS_d$. 

17:00-17:30

Coffee break

 

 

Chairperson: Kostov

 

17:30-18:10 *

Beisert, Niklas

Bethe Ansaetze for N=4 gauge theory and deformations 

18:10-18:50 *

Klimcik, Ctirad *

Quasitriangular WZW model 

18:50-19:20 *

Fiore, Gaetano *

$U_q(su(2))$-covariant Yang-Mills instantons on the quantum Euclidean space $R_q^4$ 

 


 

Quantum Groups (LT-6)

Hall B (207)

Time

Name

Title

 

Chairperson: Aizawa

 

15:30-16:00

Del Olmo, Mariano

Towards a Cartan classification of quantum algebras  

16:00-16:30

Moylan, Patrick

$U_q(so(1,2))$ representations at roots of unity and their realizations on the finite circle  

16:30-17:00

Popov, Todor

Automorphisms of cubic algebras 

17:00-17:30

Coffee break

 

 

Chairperson: Moylan

 

17:30-18:00

Aizawa, Naruhiko

Noncommutative superspaces covariant under $OSp_{q}(1|2))$ algebra  

18:00-18:30

Borowiec, Andrzej

Basic twist quantization of the exceptional Lie algebra g2 

18:30-18:50

Bershtein, Olga

On certain series of quantum bounded symmetric domains 

18:50-19:10

Samsonov, Maxim

Quantization of semi-classical twists and noncommutative geometry 

 


 

 

Fusion Theory
and Infinite-Dimensional Symmetries (LT-6)

Hall C (221)

Time

Name

Title

 

Chairperson: Ton-That

 

15:30-16:00

Scherbak, Inna

Calculation of Bethe vectors in the Gaudin model 

16:00-16:30

Ganchev, Alexander

Speculations on fusion rings and Postnikov towers  

16:30-17:00

Stefanov, Alexandre

Finite orbits of the braid group action on a set of reflections  

17:00-17:30

Coffee break

 

 

Chairperson: Ganchev

 

17:30-18:00

Ton-That, Tuong

Invariant differential operators and dual Lie transformation groups  

18:00-18:30

Rosenhaus, Vladimir

On differential equations with infinite symmetries 

18:30-18:50

Zimboras, Zoltan

What can one reconstruct from the fusion rules of a compact group? 

 


 

 

Quantum Computing and Information

Hall D (upper meeting room)

Time

Name

Title

 

Chairperson: Dreismann

 

15:30-16:00

King, Ronald

Qubits and invariant theory 

16:00-16:30

Mor, Tal

Lattice-based public key encryption and modern cryptography in a quantum environment  

16:30-17:00

Carroll, Robert

Fluctuations, information, gravity and the quantum potential 

17:00-17:30

Coffee break

 

 

Chairperson: Carroll

 

17:30-18:00

Dreismann, C. Aris

Attosecond quantum entanglement of protons and electrons in condensed matter --- neutron and electron Compton scattering experiments 

18:00-18:30

Helland, Inge

Quantum mechanics from a theory of experiments. 

18:30-18:50

Guler, Yurdahan

Canonical quantization of constrained systems  

18:50-19:10

Maydanyuk, Sergiy

Space asymmetric deformation of SIP-potentials and self-similar potentials of Sabat and Spiridonov 

 


 

 

Symmetries in Condensed Matter and Statistical Physics

Hall E (lower meeting room)

Time

Name

Title

 

Chairperson: Wipf

 

15:30-16:00

Moriya, Hajime

Statistical mechanics for quasi-local graded c* systems  

16:00-16:30

Paranjape, Manu

Abelian and nonabelian Josephson effect and pseudo-goldstone bosons 

16:30-17:00

Yordanov, Oleg

Approximately scale-invariant random fields 

17:00-17:30

Coffee break

 

 

Chairperson: Twarock

 

17:30-18:00

Papadopolos, Zorka

From root lattices to surfaces of (quasi)-crystals 

18:00-18:30

Boyle, Laurence

Some connections between n-dimensional crystallography and quasicrystals 

18:30-18:50

Koca, Mehmet

Quasi crystals and noncrystallographic Coxeter groups  

 


 

 

Saturday, August 20  

Conformal and Related Field Theory Models

Hall A (307)

Time

Name

Title

 

Chairperson: Dappiaggi

 

15:30-16:00

Nesterov, Dmitry *

Dualities and effective action in braneworld physics 

16:00-16:30

Lledo, Maria Antonia

Integration of massive states as contractions of non linear sigma-models  

16:30-17:00

Stoilov, Michail

Canonical approach to Lagrange multipliers 

17:00-17:30

Coffee break

 

 

Chairperson: Todorov

 

17:30-18:00

Dappiaggi, Claudio

The quest of holography in asymptotically flat spacetimes 

18:00-18:30

Nikolov, Nikolay

Ellipticity of thermal correlation functions in a globally conformal invariant QFT 

18:30-18:50

Jankiewicz, Marcin

Transformations among large c CFTs 

18:50-19:10

Kachkachi, Mohamed

Holomorphic conditions and conformal covariance 

 


 

Integrable Systems (2)

Hall B (207)

Time

Name

Title

 

Chairperson: Kuznetsov

 

15:30-16:00

Palla, Laszlo

Finite size effects in integrable boundary theories 

16:00-16:30

Quesne, Christiane

Hamiltonians with position-dependent effective mass, deformations and supersymmetry 

16:30-17:00

Adam, Christoph

Knot soliton models, submodels, and their symmetries. 

17:00-17:30

Coffee break

 

 

Chairperson: Quesne

 

17:30-18:00

Georgiev, Lachezar

Conformal field theory description of mesoscopic phenomena in the fractional quantum Hall regime *

18:00-18:30

Kuznetsov, Vadim

Separation principle 

18:30-19:00

Kuroki, Tsunehide

Dijkgraaf-Vafa theory as large-N reduction  

19:00-19:20

Ovando, Gabriela

A model for a completely integrable system 

 


 

Superalgebras (LT-6)

Hall C (221)

Time

Name

Title

 

Chairperson: Kamiya

 

15:30-16:10

Van der Jeugt, Joris

Composite supersymmetric S-functions and characters of $gl(m|n)$ representations 

16:10-16:40

Cassinelli, Gianni

Unitary representations of super semidirect products as super Harish-Chandra pairs. 

16:40-17:00

Carmeli, Claudio

Unitary representations of super Poincare' group in arbitrary dimension.  

17:00-17:30

Coffee break

 

 

Chairperson: Van der Jeugt

 

17:30-18:00

Kamiya, Noriaki

A construction of Lie superalgebras B(m,n) and D(m,n) from triple systems 

18:00-18:30

Stoilova, Nedialka

Lie superalgebraic generalization of quantum statistics 

18:30-19:00 *

Galkin, Alexander

Galilean superalgebra and physical models invariant under the Galilean superalgebra 

 


  

Dynamical Systems and Wigner Functions

Hall D (upper meeting room)

Time

Name

Title

 

Chairperson: Schuch

 

15:30-16:10

Zaitsev, Oleg

Semiclassical approach to weak antilocalization and spin relaxation in open billiards 

16:10-16:40

Constantinescu, Radu

Lie symmetries for constrained dynamical systems 

16:40-17:00

Constantinescu, Constanta Dana

Regular and chaotic dynamics in non-autonomous Hamiltonian systems 

17:00-17:30

Coffee break

 

 

Chairperson: Constantinescu

 

17:30-18:10

Schuch, Dieter

On the relation between the Wigner function and an exact dynamical invariant for conservative and dissipative systems  

18:10-18:30

Khademi, Siamak

Quantization of dissipative charged particles by Wigner functions  

18:30-18:50

Nasiri, Sadollah

Generalized phase space distributions and ordering rules