- Low-dimensional Quantum Spin Systems | Request PDF.
- Optical Spectroscopy of Low-Dimensional Quantum Spin Systems.
- Exact solution of two-dimensional (2D) Ising model with a transverse.
- Low-dimensional quantum spin systems in pulsed magnetic fields.
- [cond-mat/0011262] Low-dimensional quantum spin systems.
- Low dimensional quantum spin systems.
- Neutron Scattering Studies of Low-Dimensional Quantum Spin Systems.
- Tensor Network States and Effective Particles for Low-Dimensional.
- (PDF) Low-dimensional quantum spin systems - ResearchGate.
- The Fascinating World of Low-Dimensional Quantum Spin.
- Low-dimensional Quantum Spin Systems | SpringerLink.
- Low dimensional quantum spin systems - Strikingly.
- 2 Low-Dimensional Quantum Spin Systems 1. 2. 1 Quantum Spin.
Low-dimensional Quantum Spin Systems | Request PDF.
[Submitted on 26 Nov 2018 ( v1 ), last revised 5 Nov 2019 (this version, v2)] Classes of topological qubits from low-dimensional quantum spin systems Dong-Sheng Wang Topological phases of matter is a natural place for encoding robust qubits for quantum computation..
Optical Spectroscopy of Low-Dimensional Quantum Spin Systems.
A number of powerful theorems and exact, analytical results are available for the ground and excited state properties of spin systems in dimensions d= 1 and 2. The discovery of high temperature (high-Tc) superconductivity in doped cuprate materials [2J has given a considerable boost to research activities in magnetism.
Exact solution of two-dimensional (2D) Ising model with a transverse.
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Low-dimensional quantum spin systems in pulsed magnetic fields.
In recent times, ab initio density functional theory has emerged as a powerful tool for making the connection between models and materials. Insulating transition metal oxides with a small spin forms a fascinating class of strongly correlated systems that exhibit spin-gap states, spincharge separation, quantum criticality, superconductivity, etc. The coupling between spin, charge, and. Whilst bulk metallic and semiconducting systems have been to date major material stages to realize the aforementioned concepts, low-dimensional materials systems such as atomically-flat two-dimensional materials [1-3], two-dimensional electron gases formed at an interface of a heterostructure [4,5], topologically-protected Dirac surface states. A central concept in describing these low-dimensional quantum spin systems is that of a spin liquid. This ground state is dominated by strong quantum fluctuations, pronounced spinspin correlations and a suppression of long-range magnetic order.
[cond-mat/0011262] Low-dimensional quantum spin systems.
To proceed, a modified spin-wave theory for low-dimensional quantum magnetic systems is formulated under the constraint of zero magnetization. This theory can describe disordered state directly, and can be generalized to the ordered phase by identifying the magnetic ordering with the Bose condensation of spin waves..
Low dimensional quantum spin systems.
The two-dimensional electron gas (2DEG) formed at interfaces between SrTiO3 (STO) and other oxide insulating layers is promising for use in efficient spin-charge conversion due to the large Rashba.
Neutron Scattering Studies of Low-Dimensional Quantum Spin Systems.
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Tensor Network States and Effective Particles for Low-Dimensional.
Low-dimensional quantum spin systems are interacting many body systems for which several rigorous results are known. Powerful techniques like the Bethe Ansatz provide exact knowledge of the ground state energy and low-lying excitation spectrum. A large number of compounds exists which can effectively be described as low-dimensional spin systems. Low-dimensional quantum spin systems-> our publications in this field. In systems with low dimensional magnetic interactions, geometrical frustration and small spins the macoscopic properties are strongly affected by quantum fluctuations. We aim to unveil novel ground states and effects in this class of materials and to establish new model systems. Quantum low-dimensional spin systems with strong correlation interspin attract considerable attention recently. In such systems, the strong quantum fluctuations prevent the formation of long-range magnetic order, leading to the formation of exotic ground states as the spin gap and a gapless behavior. Of particular interest are the chain of.
(PDF) Low-dimensional quantum spin systems - ResearchGate.
Part of the Advances in Solid State Physics book series (ASSP,volume 43) Abstract Low-dimensional quantum spin systems display fascinating excitation spectra. In recent years, optical spectroscopy was shown to be a powerful tool for the study of these spectra by means of phonon-assisted infrared absorption.
The Fascinating World of Low-Dimensional Quantum Spin.
.. In this thesis, I use a quantum Monte Carlo QMC method based on the stochastic series expansion SSE to study transport, quantum phase diagrams, and dynamics of several one- and quasi-one-dimensional spin systems, including spin-1/2 and spin-1 chains, a frustrated four-leg spin tube, and N-leg spin-1/2 ladders.
Low-dimensional Quantum Spin Systems | SpringerLink.
Low-dimensional spin systems reveal new and unexpected physical phenomena such as distinct plateaus in the magnetization as a function of magnetic field. In this paper, we present ESR and ultrasonic measurements for the quasi-two-dimensional spin system SrCu 2 (BO 3 ) 2 and the spinchain compound NH 4 CuCl 3 in magnetic fields up to 50 T. From the combination of our experimental techniques we. We analyze quantum Monte Carlo data in the vicinity of the quantum transition between a Neel state and a quantum paramagnet in a two-layer, square-lattice spin-1/2 Heisenberg antiferromagnet. The real-space correlation function and the universal amplitude ratio of the structure factor and the dynamic susceptibility show clear evidence of. We study the spin-Peierls (SP) transition of one-dimensional chain polymeric complexes coupled to lattice by means of many-body Green's function theory.... Spin-Peierls transition in low-dimensional quantum spin systems: a Green's function approach Phys Chem Chem Phys. 2009 Dec 28;11(48):11415-23. doi: 10.1039/b913654a. Epub 2009 Oct 20.
Low dimensional quantum spin systems - Strikingly.
. UCL Discovery is UCL's open access repository, showcasing and providing access to UCL research outputs from all UCL disciplines.
2 Low-Dimensional Quantum Spin Systems 1. 2. 1 Quantum Spin.
The basic role in low dimensional magnetism belongs to Mermin-Wagner theorem formulated in 1966. 5 It states that no one-dimensional or two-dimensional isotropic Heisenberg spin system can order. The results of the x =0.65 system, which are already published [8], [12], are also shown for comparison: (1) B= (B/T) 2 +B+T. Here the first and the third terms are from the OA theory and the second term is the anisotropy term introduced by Asano et al. [11]. In the case of x =0.65 system, Eq..
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