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Dimensional crossover in spin-1 Heisenberg antiferromagnets : a quantum Monte Carlo study
Published 2013“…The stochastic series expansion quantum Monte Carlo method is used to calculate equilibrium thermodynamic variables in the presence of an external magnetic field. …”
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Journal Article -
2
Frustrated quantum magnets
Published 2013“…A class of Frustrated Quantum Magnets (FQM) is investigated using the Stochastic Series Expansion (SSE) Quantum Monte Carlo (QMC) method. …”
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Final Year Project (FYP) -
3
Sign-problem free quantum stochastic series expansion algorithm on a quantum computer
Published 2023“…A quantum implementation of the Stochastic Series Expansion (SSE) Monte Carlo method is proposed, and is shown to offer significant advantages over classical implementations of SSE. …”
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Journal Article -
4
Computational study on 1D quantum spin chain
Published 2023“…Apart from that, there are many powerful numerical methods which prove more efficient than analytical approach when studying 1D spin chain, such as Quantum Monte Carlo method, renormalization group and field theoretic method. …”
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Final Year Project (FYP) -
5
Molecular simulation study on hydrogen gas via quantum description
Published 2009“…In part 3, the author needs to understand the Monte Carlo simulation method and generate a three-dimensional simulation module for hydrogen atom consists of a nucleus and an electron. …”
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Final Year Project (FYP) -
6
Full-dimensional quantum calculations of the vibrational states of H5+
Published 2013“…All of these values agree well with the diffusion Monte Carlo and multi-configuration time-dependent Hartree results where available.…”
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Journal Article -
7
Novel approach to solving stochastic constrained shortest path problem with quantum computing
Published 2023“…Our unique algorithm combines classical techniques like Monte Carlo Sampling with quantum methods, like the Variational Quantum Eigensolver. …”
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Final Year Project (FYP) -
8
Critical Dynamics of Transverse-field Quantum Ising Model using Finite-Size Scaling and Matrix Product States
Published 2019“…Conventional methods such as Monte Carlo simulations and phenomenological renormalization group methods obtain the critical exponents without obtaining the quantum wavefunction of the system. …”
Article -
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Engineered ultraviolet InGaN/AlGaN multiple-quantum-well structures for maximizing cathodoluminescence efficiency
Published 2022“…With this understanding, we have achieved a good agreement on the dependence of acceleration voltage and QW number in InGaN/GaN MQW structures between the experimental data and the Monte-Carlo (CASINO) simulations. These findings indicate that CL-based UV generation from carefully engineered III-N MWQ structures with an appropriate number of QWs is highly promising. …”
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Journal Article -
10
Generation and statistical analysis of chaos-based pseudorandom sequences
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Thesis -
11
Low-temperature thermodynamic properties near the field-induced quantum critical point in NiCl2-4SC(NH2)2
Published 2013“…Our experimental study is complemented by analytical calculations and quantum Monte Carlo simulations, which reproduce nicely the measured quantities. …”
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Journal Article -
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Towards continuously tunable, table-top X-ray imaging with free electron-driven van der Waals structures
Published 2024“…Lastly, we develop a truly predictive theoretical framework that combines first-principles electromagnetism with Monte Carlo electron scattering simulations to accurately predict the photon flux and brightness. …”
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Thesis-Doctor of Philosophy -
14
Pairing correlations in the two-layer attractive Hubbard model
Published 2014“…In this paper, we use quantum Monte Carlo to study analogous issues for attractive interactions. …”
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Journal Article -
15
Search for bose glass phase in the Shastry-Sutherland model
Published 2014“…In this project, 4 physical properties are determined: boson density, structure factor, stiffness and energy, by using the one of the quantum Monte Carlo methods called the \emph{stochastic series expansion}. …”
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Final Year Project (FYP) -
16
Neel to spin-Peierls transition in the ground and excited state of a quasi-1D Heisenberg model coupled to bond phonons.
Published 2012“…The spin-Peierls transtion in the ground state (quantum phase transition) and excited state(thermal phase transition) of a quasi-1D Heisenberg model is investigated using the stochastic series expansion quantum monte carlo method. …”
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Final Year Project (FYP) -
17
Dimensional crossover in bose-hubbard model.
Published 2011“…We used quantum Monte Carlo simulation to investigate the dimensional crossover in the Bose-Hubbard model when the inter layer coupling Jp was reduced from 1 to 0. …”
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Final Year Project (FYP) -
18
Mott transition in hardcore Bose Hubbard model for honeycomb lattice
Published 2015“…The purpose of this study is to learn how to use direct loop update Stochastic Series Expansion Quantum Monte Carlo simulation to observe Mott transition for a hard core bosonic system in a honeycomb lattice using a Bose-Hubbard model. …”
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Final Year Project (FYP) -
19
Spin-Peierls transition in 2D Heisenberg model with bond phonons.
Published 2013“…Two kinds of possible dimerization patterns of Spin-Peierls transition in a 2D spin-1/2 Heisenberg model antiferromagnetic coupled to bond phonons with variable inter-chain coupling strength, corresponding to wave vectors Q=(π,0) andQ=(π,π), are investigated by using the Stochastic Series Expansion Quantum Monte Carlo method. The system is simulated by spin-1/2 Heisenberg Model with Nearest-Neighbor with inter-chain antiferromagnetic coupling. …”
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Final Year Project (FYP) -
20
Phase diagram and magnetic excitations of anisotropic spin-one magnets
Published 2013“…We use a generalized spin wave approach and large scale quantum Monte Carlo (QMC) simulations to study the quantum phase diagram and quasiparticle excitations of the S=1 Heisenberg model with an easy-plane single-ion anisotropy in dimensions d=2 and 3. …”
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Journal Article