• Computationally Efficient Field-Theoretic Simulations for Block Copolymer Melts 

  Beardsley, T.M.; Spencer, R.K.W.; Matsen, M.W. (American Chemical Society, 2019-11-12)

  Field-theoretic simulations (FTS) provide fluctuation corrections to self-consistent field theory (SCFT) by simulating its field-theoretic Hamiltonian rather than applying the saddle-point approximation. Although FTS work ...

• Segregation of chain ends to the surface of a polymer melt: effect of surface profile versus chain discreteness 

  Mahmoudi, Pendar; Matsen, Mark (Springer, 2016)

  Silberberg has argued that the surface of a polymer melt behaves like a reflecting boundary on the random-walk statistics of the polymers. Although this is approximately true, independent studies have shown that violations ...

• Entropic segregation of short polymers to the surface of a polydisperse melt 

  Mahmoudi, Pendar; Matsen, Mark (Springer, 2017)

  Chain ends are known to have an entropic preference for the surface of a polymer melt, which in turn is expected to cause the short chains of a polydisperse melt to segregate to the surface. Here, we examine this entropic ...

• Field-Sweep Control in Magnetic Resonance and k-space Analysis 

  Amoros Binefa, Julia (University of Waterloo, 2019-10-30)

  In a general magnetic resonance experiment, resonant radiofrequency or microwave fields are applied to an ensemble of electron or nuclear spins to determine their magnetic interactions with their local environment. These ...

• Testing the Universality of Entropic Segregation at Polymer Surfaces 

  Mahmoudi, Pendar; Forrest, William; Beardsley, Tom; Matsen, Mark (2018)

  This study addresses entropic segregation effects at the surfaces of monodisperse and bidisperse melts. For the monodisperse melts, we focus on the segregation of chain ends to the surface, and for the bidisperse melts, ...

• Spontaneous Tilting Transition in Liquid-Crystalline Polymer Brushes 

  Blaber, Steven; Abukhdeir, Nasser Mohieddin; Matsen, Mark (2019)

  The equilibrium phase behavior of main-chain liquid-crystalline polymer brushes in good solvent is investigated using self-consistent field theory. The calculation assumes semi-dilute brushes, where the grafting density ...

• Path Integrals in the Sky: Classical and Quantum Problems with Minimal Assumptions 

  Feldbrugge, Job Leon (University of Waterloo, 2019-10-24)

  Cosmology has, after the formulation of general relativity, been transformed from a branch of philosophy into an active field in physics. Notwithstanding the significant improvements in our understanding of our Universe, ...

• Field-Orientation Coupling Effects in Nematic Liquid Crystal Cells 

  Ferguson, Jake (University of Waterloo, 2019-10-23)

  Using the continuum Landau-de Gennes model for the nematic liquid crystal (NLC) phase, we study the equilibrium behaviour of nematic cells, accounting for the coupling between external fields and nematic order. This is ...

• X-ray Astrophysics: The Spoiler Clusters and XRISM Synchrotron Calibrations 

  Martz, Connor (University of Waterloo, 2019-10-22)

  Cool core galaxy clusters hosting brightest cluster galaxies (BCGs) in their centres radiate away their energy on timescales of less than 10^9 yr. If cooling wasn't offset by some form of heating, the hot atmosphere would ...

• Detecting the Surface Spin Polarization State of Topological Materials by Using Resonant X-ray Reflectometry 

  Gong, Rantong (University of Waterloo, 2019-10-21)

  The topological insulator as a promising and low cost next generation spintronic device attracts lots of attentions recently. The spin-momentum locking is a characteristic feature of topological materials at the surface ...

• Physiologically based Pharmacokinetic (PBPK) Modelling of Cisplatin in Rats and Humans 

  Park, Hyunjin (University of Waterloo, 2019-10-17)

  The physiologically based pharmacokinetic (PBPK) modelling has been accepted as one of the most effective mechanistic techniques to analyze pharmacokinetics (PK) of drugs in the drug development process. Its effectiveness ...

• Quantum Algorithmic Techniques for Fault-Tolerant Quantum Computers 

  Kieferova, Maria (University of Waterloo, 2019-10-01)

  Quantum computers have the potential to push the limits of computation in areas such as quantum chemistry, cryptography, optimization, and machine learning. Even though many quantum algorithms show asymptotic improvement ...

• Non-perturbative approaches to Scattering Amplitudes 

  Gomez Cordova, Lucia (University of Waterloo, 2019-09-26)

  This thesis is devoted to the study of scattering amplitudes using two non-perturbative approaches. In Part I we focus on a particular theory known as N = 4 Super-Yang-Mills in four spacetime dimensions. The scattering ...

• Holographic Optical Manipulation of Trapped Ions for Quantum Simulation 

  Shih, Chung-You (University of Waterloo, 2019-09-26)

  Trapped ion is one of the leading platforms for quantum simulation experiment due to its long coherence time and high fidelity state initialization, detection, and manipulation. To individually address ions at a single-ion ...

• Design and construction of an ion trapping apparatus for quantum simulation experiments 

  Kotibhaskar, Nikhil (University of Waterloo, 2019-09-26)

  The trapped ions platform represents an excellent framework for Quantum information science experiments. Long coherence times, extremely high state initialization and detection fidelity, inherent full-connectivity between ...

• Measuring Trapped Ion Qudits 

  Bramman, Brendan (University of Waterloo, 2019-09-26)

  Quantum information has typically focused on using 2-level qubits to perform simulation and computation. We propose to expand the number of levels for computation using qudits, where \(d>2\). Doing so could be a viable ...

• Tolerable Experimental Imperfections for a Quadrupole Blade Ion Trap and Practical Qudit Gates with Trapped Ions 

  Low, Pei Jiang (University of Waterloo, 2019-09-26)

  Trapped ions are one of the leading technologies in quantum information technology due to their long coherence time and low noise presence. For trapping ions, there are a plethora of ion trap architectures. Among them ...

• Fluctuation effects in blends of A+B homopolymers with AB diblock copolymer 

  Spencer, Russell; Matsen, Mark (AIP, 2018-05)

  Field-theoretic simulations (FTS) are performed on ternary blends of A- and B-type homopolymers of polymerization N_h and symmetric AB diblock copolymer of polymerization N_c. Unlike previous studies, our FTS are conducted ...

• Fluctuation correction for the critical transition of symmetric homopolymer blends 

  Beardsley, Tom; Matsen, Mark (AIP, 2017-07)

  Monte Carlo simulations are performed on structurally symmetric binary homopolymer blends over a wide range of invariant polymerization indexes, N. A finite-size scaling analysis reveals that certain critical exponents ...

• Calibration of a Lattice Model for High-Molecular-Weight Block Copolymer Melts 

  Willis, James; Beardsley, Tom; Matsen, Mark (AIP, 2019-05-06)

  The Morse calibration is applied to a lattice model designed for efficient simulations of two-component polymer melts of high molecular weight. The model allows multiple occupancy per site, which results in high invariant ...

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