aqora

Detection of Exotic Order Parameters of Quantum Antiferromagnets through Reduced Density Matrices (Field-Induced Phase Transitions and Dynamics in Quantum Spin Systems)

Shunsuke Furukawa, Grégoire Misguich, Masaki Oshikawa

Progress of Theoretical PhysicsJan 1, 20050 citations

Finite-Field Ground State of an S=1 Anisotropic Antiferromagnetic Chain(Low Dimensional Systems, Field-Induced Phase Transitions and Dynamics in Quantum Spin Systems)

Takashi Tonegawa, Kouichi Okunishi, Tôru Sakai +1 more

Progress of Theoretical Physics SupplementOct 31, 20050 citations

High-Field NMR Insights into Quantum Spin Systems(Low Dimensional Systems, Field-Induced Phase Transitions and Dynamics in Quantum Spin Systems)

M. Horvatić, C. Berthier, Fabio Tedoldi +4 more

Progress of Theoretical Physics SupplementOct 31, 20050 citations

Detection of Exotic Order Parameters of Quantum Antiferromagnets through Reduced Density Matrices

Shunsuke Furukawa, Grégoire Misguich, Masaki Oshikawa

We propose a new method based on reduced density matrices for determining order parameters of quantum spin systems. Our method can extract the order parameter directly from ground-state wave functions without prior knowledge, and thus has a potential for detecting unknown exotic orders. We numerically apply our method to the multiple-spin exchange model on the ladder and detect the staggered dimer and the scalar chiral orders which have been found in previous studies. We also consider the resonating valence bond liquid in a solvable quantum dimer model and demonstrate through reduced density matrices that its ground states cannot be characterized by any local order parameter.We propose a new method based on reduced density matrices for determining order parameters of quantum spin systems. Our method can extract the order parameter directly from ground-state wave functions without prior knowledge, and thus has a potential for detecting unknown exotic orders. We numerically apply our method to the multiple-spin exchange model on the ladder and detect the staggered dimer and the scalar chiral orders which have been found in previous studies. We also consider the resonating valence bond liquid in a solvable quantum dimer model and demonstrate through reduced density matrices that its ground states cannot be characterized by any local order parameter.

Progress of Theoretical Physics SupplementJan 1, 20050 citations

Field-Induced Transitions and Spin Gaps in Low-Dimensional Quantum Antiferromagnets

清美岡本, Kiyomi Okamoto

Jan 1, 20020 citations

Effect of Staggered Field on the Magnetization Process of S=1/2 Antiferromagnetic Chains(Low Dimensional Systems, Field-Induced Phase Transitions and Dynamics in Quantum Spin Systems)

Akira Matsuo, Kohei Hosokawa, Yasuo Narumi +7 more

Progress of Theoretical Physics SupplementOct 31, 20050 citations

Detection of Exotic Order Parameters of Quantum Antiferromagnets through Reduced Density Matrices(Low Dimensional Systems, Field-Induced Phase Transitions and Dynamics in Quantum Spin Systems)

Related papers

Detection of Exotic Order Parameters of Quantum Antiferromagnets through Reduced Density Matrices(Low Dimensional Systems, Field-Induced Phase Transitions and Dynamics in Quantum Spin Systems)

Related papers