Welcome to the homepage of our group our research is focused on ultracold gases in optical lattices, hybrid quantum simulators such as ion-atom systems, and strongly correlated electrons, eg in nanostructures you can find descriptions of the individual research projects here below is a selection of recent publications. Performance and memory bottlenecks prevent most current quantum computer simulators from being able to simulate quantum systems that are large enough to be useful in this thesis, we develop a matrix-free sequential quantum computer simulator to vastly improve both time and memory performance of sequential code. Readmemd quantum-clustering-masters-thesis matlab code that was used in the msc thesis of lior deutsch the final thesis paper is also included as a pdf file the functions: preprocessspectrumm - preprocess a spectrum to make it clusterizable by qc quantumclusteringm - perform quantum clustering on data. Richard feynman's never previously published doctoral thesis formed the heart of much of his brilliant and profound work in theoretical physics entitled “the principle of least action in quantum mechanics, its original motive was to quantize the classical action-at-a-distance electrodynamics because that theory adopted.
Abstract the problem of the interaction of a quantum system having discrete states, with a classical oscillating field, is reexamined as a problem in the solution of the time-dependent schrodinger equation with a periodic hamiltonian a method is presented for approximating the time-dependent hamiltonian. High-fidelity quantum logic in ca+ christopher j ballance a thesis submitted for the degree of doctor of philosophy michaelmas term 2014 hertford college, oxford trapped atomic ions are one of the most promising systems for building a quantum computer – all of the fundamental operations needed. Is thesis reports on the creation and analysis of many-body states of interacting fermionic atoms in optical la ices e realized system can be described by the fermi-hubbard hamiltonian, whi is an important model for correlated electrons in modern condensed ma er physics in this way, ultra-cold atoms can be utilized.
Entanglement and quantum interactions with macroscopic gas samples brian julsgaard danish national research foundation center for quantum optics - quantop department of physics and astronomy university of aarhus, denmark phd thesis october 2003. Ida kläppevik and johan bremer have been awarded with the microwave road scholarship for best master's thesis 2017, in the area of antenna and microwave engineering we focus our research on the areas of future nano- and quantum electronics, photonics, bio- and nanosystems mc2 at a glance.
Abstract: phd thesis dealing with various aspects of multipartite entanglement, such as entanglement measures, absolutely maximally entangled states, bell inequalities, entanglement spectrum and quantum frustration also some quantum algorithms run with the ibm quantum computer are covered,. Abstract: after a general introduction, the thesis is divided into four parts in the first, we discuss the task of coin tossing, principally in order to highlight the effect different physical theories have on security in a straightforward manner, but, also, to introduce a new protocol for non-relativistic strong coin tossing. Quantum state engineering and information processing with trapped ions by brian e king bsc, simon fraser university, 1992 ms, university of colorado at boulder, 1994 a thesis submitted to the faculty of the graduate school of the university of colorado in partial fulfillment of the requirements for the degree of.
2015 bernardo casabone two ions coupled to an optical cavity: from an enhanced quantum computer interface towards distributed quantum computing download michael niedermayr cryogenic surface ion traps download muir kumph 2d arrays of ion traps for large scale integration of quantum information processors. Quantum computation: an introduction a thesis presented by james taylor lewis grimmelmann to computer science in partial fulfillment of the honors requirements for the degree of bachelor of arts harvard college cambridge, massachusetts april 5, 1999. At yet higher fields, we observe fractional quantum hall states which show signatures of the unique symmetries and anisotropies of the graphene qhifm the final part of the thesis details a proposal and preliminary experiments to probe isospin ordering in bilayer graphene using capacitance measurements. Iqoqi thesis prize the thesis prize is awarded by the institute for quantum optics and quantum information of the austrian academy of sciences (iqoqi innsbruck) and recognizes graduates of phd or doctoral studies from the university of innsbruck that have excelled in the field of quantum physics the prize consists.
Entanglement and quantum error correction with superconducting qubits matthew david reed 2013 a quantum implementation is to use superconducting quantum bits in the circuit quantum electro- dynamics (cqed) architecture there, the low energy xxi nomenclature xxiii 1 introduction 1 11 overview of thesis. Of its own right and that it could considerably enrich the quantum mechanics itself this thesis shows the basic ideas of susy qm – factorization of a hamiltonian and definition of its superpartner – and discusses some of the consequences and new concepts which arose from these ideas, such as shape invariant potentials.
Juan miguel arrazola of the department of physics and astronomy will be defending his thesis: practical quantum communication juan miguel is supervised by professor norbert lütkenhaus. Christian dickel msc project nuclear spin mediated landau-zener transitions in double quantum dots the double quantum dot system in gaas is a promising hardware for quantum information processing in this thesis, a measurement scheme to probe the dynamics of nuclear spins in gaas quantum. Quantum trajectories and feedback by howard mark wiseman a thesis submitted to the university of ueensland for the degree of doctor of philosophy department of physics november q994.
This thesis is an attempt to reconstruct the conceptual foundations of quantum mechanics first, we argue that the wave function in quantum mechanics is a description of random discontinuous motion of particles, and the modulus square of the wave function gives the probability density of the particles being in certain. Feynman's thesis a new approach to quantum theory over the paths of the oscillator can be performed when calculating the transition amplitude of the system from the initial time 0 to the final time t with x(o) = x and x(t) = x', feynman calls the function so obtained g-y(x, x' t), obtaining finally the formula for the transition. Tion theory of quantum electrodynamics (qed) feynman based his own formulation of a consistent qed, free of meaningless infinities, upon the work in his doctoral thesis of 1942 at princeton univer- sity, which is published here for the first time his new approach to quantum theory made use of the principle of least action. Audrey cottet quantronics group implementation of a quantum bit in a superconducting circuit this thesis is also available as a pdf file on the quantronics group website:.