Computaitinal Approaches to Quantum Critical Phenomena

Program and Abstract for printing (PDF file)

			Workshop Program
			Program and Abstracts of Symposium

Workshop Schedule

Week 1 (17-21 July, 2006)
''Monte Carlo Method and Magnetism''

	Speaker		Topic/Abstract	PDF
July 17	NATIONAL HOLYDAY
July 18	N. Kawashima	14:00-	*Quantum Monte Carlo algorithms based on world-lines*
July 19	A. Sandvik	14:00-	An introduction to the stochastic series expansion method
July 20	OFF
July 21	N. Trivedi	11:00-	*Dynamics from Quantum Monte Carlo Simulations: Part II*
	N. Trivedi	14:00-	*Dynamics from Quantum Monte Carlo Simulations: Part II*
	<Friday Evening Refreshments>

Week 2 (24-28 July, 2006)
''Low-dimensional systems and density matrix renormalization group''

	Speaker		Topic/Abstract
July 24	T. Kato	14:00-	*Quantum Dissipative Systems*
July 25	S. Miyashita	14:00-	*Magnetism in Nano-Scale Systems*
July 26	K. Hida	11:00-	*Field Induced Multiple Reentrant Quantum Phase Transitions in Randomly Dimerized Antiferromagnetic S=1/2 Heisenberg Chains*
July 26	E. Jeckelmann	14:00-	*Introduction to the Density-Matrix Renormalization Group*
July 27	E. Jeckelmann	11:00-	*Recent Developments in DMRG*
July 27	K. Okunishi	14:00-	*Is DMRG a renormalization group? --unconventional introduction to DMRG--*
July 28	C. Batista	14:00-	*Frustration in Low Dimensional Systems*
July 28	<Beer Party>

Week 3 (31 July-4 August, 2006)
''Novel numerical methods, fermion systems, and various applications''

	Speaker		Topic
July 31	M. Imada	14:00-	*Fermion Simulations*
Aug 1	Y. Motome	11:00-	*Exact diagonalization study of Mott transition in the Hubbard model on an anisotropic triangular lattice*
Aug 1	J. Corney	14:00-	*Gaussian Quantum Monte Carlo Methods*
Aug 2	K. Harada	11:00-	*Loop Algorithms with Non-Binary Loops*
Aug 2	A. Sandvik	14:00-	Quantum Monte Carlo simulations in the valence bond basis
Aug 3	P. Werner	11:00-	*A continuous-time solver for quantum impurity models*
Aug 3	S. Todo	14:00-	*Quantum Phase Transitions in Low Dimensional Magnets*
Aug 4	OFF
Aug 4	<Friday Evening Refreshments>

Week 4 (7-11 August, 2006)
''Analytical approaches and systematic numerical approaches''

	Speaker		Topic
Aug 7	N. Prokof'ev	14:00-	*Worm algorithm and its applications*
Aug 8	M. Troyer	14:00-	*The ALPS Project: Open Source Software for Classical and Quantum Lattice Models*
Aug 9	SYMPOSIUM
Aug 10
Aug 11
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Symposium Schedule

	August 9 (WED)	August 10 (THU)	August 11 (FRI)
9:00		Daniel Cox: ICAMipedia	Christian Rüegg: Finite Temperature Effects on the Excitation Spectrum in Quantum Critical Magnetic Insulators
9:30		Takafumi Suzuki: Searching for a supersolid phase in three dimensions	Hiroshi Kageyama: Ion Exchange as a Tool to Explore Two-Dimensional Square Lattice Antiferromagnets
10:00	Takeo Kato: Quantum Monte Carlo study of many-body systems coupled with lattice degrees of freedom	Masashi Takigawa: A new high field phase in the frustrated 2D dimer spin system SrCu2(BO3)2o be announced	Tsutomu Momoi: Magnetic multipole orders in frustrated ferromagnets
10:30	Minoru Takahashi: Calculation of correlation functions of spin 1/2 XXX chain	BREAK
11:00	Hiroyuki Nojiri: Dynamics and magnetization process of triangle based low dimensional systems, ring, tube, helix and ball	Hidekazu Tanaka: Magnetic Quantum Phase Transitions and Critical Behavior in TlCuCl3 and KCuCl3	Yutaka Okabe: Duality and finite-size scaling analysis of the two-dimensional diluted Villain model
11:30	Hirokazu Tsunetsugu: Spin Nematic State in a Triangular Antiferromagnet	Marcelo Jaime: A Bose-Einstein condensate of magnons in anisotropic quantum magnets BaCuSi2O6 and NiCl2-4SC(NH2)2	Hideaki Maebashi: Kondo Problems in Quantum Critical Environments
12:00	Yukitoshi Motome: Metamagnetism and related critical phenomena in pyrochlore Heisenberg antiferromagnets	Cristian Batista: Geometrical Frustration and Dimensional Reduction at a Quantum Critical Point	Seiji Miyashita: Magnetic structure in inhomogeneous systems and time-dependent systems
12:30	LUNCH
14:00	Naoki Kawashima: Emerging spatial structures in SU(N) Heisenberg model	Daniel Cox: I2CAM Fellowships	Naomichi Hatano: A numerical algorithm for the eigenvalue distribution of non-Hermitian matrices
14:30	Kenji Harada: Quantum Phase Transition between Two Ordered Phases with Unrelated Symmetries	Toru Sakai: Field-Induced Quantum Critical Phenomena in Quasi-1D Spin Systems	C. L. Henley: The correlation density matrix: new tool for analyzing exact diagonalizations?
15:00	Eric Jeckelmann: Stripe formation in doped Hubbard ladders	Kazuo Hida: Emergence of Long Period Antiferromagnetic and Ferrimagnetic Orders Due to Anisotropy Modulation in High Spin Heisenberg Chains	Masaki Oshikawa: Ferromagnetism and Quantum Statistics
15:30	BREAK		Nikolay Prokofiev: Flowgram method for precise studies of poly-critical points and deconfinded criticality as a theory of weak first order transitions
16:00	Kouichi Okunishi: Real space renormalization group approach for the corner Hamiltonian	Masayuki Hagiwara: Tomonaga-Luttinger liquid induced by a magnetic field in a gapped quasi-1D antiferromagnet	Anders Sandvik: Deconfined quantum criticality in a 2D Heisenberg model with four-spin interactions
16:30	Matthias Troyer: The fate of vacancy-induced supersolidity in ⁴He	Masatoshi Imada: Quantum Critical "Opalescence"
17:00	Synge Todo: Universal Relation in Critical Temperature of Strongly Anistropic Magnets	Joel Corney: Phase-space methods for fermions: bounded distributions and stochastic gauges
17:30	Philipp Werner: DMFT study of the temperature and doping dependent Mott transition in the Hubbard and Kondo-lattice model	Kazushi Kanoda: Highly Correlated Electrons on Triangular Lattice; Mott Criticality, Spin Liquid and Superconductivity
18:00	POSTER
18:30		PARTY
19:00		PARTY
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Poster Session

18:00-19:30 August 9 (Wed.)

No.	Name	Title
P1	Tomonori Shirakawa	Spin-triplet superconductivity in the double-chain Hubbard model
P2	Hiroaki Matsueda	Density matrix renormalization group study of dynamics in correlated electron systems with environment
P3	Isao Maruyama	Stability of One-dimensional Mott Insulators against Charge Fluctuations by the Density Matrix Renormalization Group Method
P4	Takayoshi Tanaka	Numerical study of diluted orbital
P5	Munehisa Matsumoto	Effects of Impurities in Quasi-One-Dimensional Haldane
P6	Andreas Läuchli	Pairing Phase in Bosonic Systems with Correlated Hopping
P7	Chitoshi Yasuda	Bond-Dilution-Induced Quantum Phase Transitions in Heisenberg Antiferromagnets
P8	Hiroaki Onishi	Low-energy properties of one-dimensional spin-orbital model
P9	Hideaki Obuse	Surface and corner multifractality in two-dimensional symplectic class
P10	Takashi Oka	Non-linear transport in a commensurate CDW and universal KPZ fluctuation
P11	Nobuya Maeshima	Dynamical properties of photoexcited states in one-dimensional dimerized Mott insulators
P12	Shiro Sakai	Quantum Monte Carlo study of the multiorbital Hubbard model with spin and orbital rotational symmetries
P13	Canceled	Canceled
P14	Yoichi Asada	The Anderson transitions in 3D, 2D, and below 2D
P15	Sei Suzuki	Mean field quantum annealing
P16	Chisa Hotta	New type of quantum liquid of spinless fermions on an anisotropic triangular lattice
P17	Shin Miyahara	Magnetization plateaux for distorted triangular antiferromagnet Cs2CuBr4
P18	Kiyomi Okamoto	Re-entrant quantum phase transitions with respect to the XXZ anisotropy parameter in spin chains
P19	Yasuyuki Kato	Modification of Directed-Loop Algorithm for Continuous Space Simulation of Bosonic Systems
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