Sökning: "quantum entanglement"

Visar resultat 11 - 15 av 46 uppsatser innehållade orden quantum entanglement.

1. 11. Time-dependent light-matter coupling and quantum dynamics

   Kandidat-uppsats, Lunds universitet/Matematisk fysik; Lunds universitet/Fysiska institutionen

   Författare :Daniel Elgbro; [2023]
   Nyckelord :light-matter interaction; Rabi oscillations; quantum dynamics; optical cavity; qubit; coupled qubit; coupling strength; time-dependent coupling; dynamical qubits; entanglement; concurrence; qubit state manipulation; Jaynes-Cummings; Tavis-Cummings; Physics and Astronomy;

   Sammanfattning : In this thesis, two quantum dynamical system’s of one and two qubits coupled to a field mode confined in an optical cavity have been studied. Within the Jaynes- and Tavis- Cummings model, the dynamics of the corresponding light-matter interaction was defined in terms of the system’s coupling constants. LÄS MER

3. 12. Comparing Quantum and Semi-Classical Approaches to Non-Collinear Magnetism in an Electron-Spin Dimer

   Kandidat-uppsats, Lunds universitet/Fysiska institutionen; Lunds universitet/Matematisk fysik

   Författare :Sherwan Jamo Abdi; [2023]
   Nyckelord :Skyrmion Electron Spin Dzyaloshinskii-Moriya Interaction DMI Ehrenfest Semiclassical; Physics and Astronomy;

   Sammanfattning : In this bachelor thesis, an explorative theoretical analysis is presented on a model system characterized by various and competing magnetic interactions. The system comprises two localized magnetic moments (spins), and a single itinerant electron that hops between two orbitals located at the spins’ positions. LÄS MER

4. 13. On the possibility of property composition: A metaphysical investigation of submergent properties in top-down and bottom-up approaches to quantum mechanics

   Kandidat-uppsats, Göteborgs universitet/Institutionen för filosofi, lingvistik och vetenskapsteori

   Författare :Nova Ahlinder; [2022-01-25]
   Nyckelord :;

   Sammanfattning : In Schaffer’s Monism: priority of the whole (2010) an argument from quantum entanglement in favour of priority monism is put forward. The argument is based on quantum entanglement being a case of emergence and can loosely be described in terms of failure of property decomposition and success of property composition. LÄS MER

5. 14. Quantum state tomography of attosecond electron wavepackets

   Master-uppsats, Lunds universitet/Atomfysik; Lunds universitet/Fysiska institutionen

   Författare :Ron Demjaha; [2022]
   Nyckelord :quantum physics; quantum state tomography; atomic physics; quantum optics; density matrix; entanglement; state mixing; fano resonances; two-photon absorption; Physics and Astronomy;

   Sammanfattning : In this master thesis, a broad theoretical description is done of a novel quantum state tomography protocol called KRAKEN. This protocol is meant for the determination of the density matrix of an electronic state created by absorption of XUV radiation in the vicinity of a Fano resonance. At first, a description of the KRAKEN protocol is provided. LÄS MER

7. 15. Transversal Construction of Topological Gates on Multiqubit Quantum Codes

   Master-uppsats, Uppsala universitet/Materialteori

   Författare :Sheila Chauwinoir; [2022]
   Nyckelord :entanglement; local SU 2 evolution; topological phase factors; topological gates; transversal gates; multiqubit quantum codes; Hopf fibration;

   Sammanfattning : We study the possibility of constructing quantum gates using topological phases, which originate from local SU(2) evolution of entangled multiqubit systems. For this purpose, logical codewords using two-, three- and nine-qubit entangled states are defined and possible implementations of topological gates on these codes, are examined. LÄS MER