Essays about: "spin system"

Showing result 1 - 5 of 111 essays containing the words spin system.

1. 1. The Pseudo-Unitary Group U(p,q) in Quantum Magnonics

   University essay from Uppsala universitet/Materialteori

   Author : Maximilian Meyer-Mölleringhof; [2024]
   Keywords : quantum magnonics; materials theory; pseudo-unitary; quantum mechanics; magnons; antiferromagnets;

   Abstract : The study of magnons is an essential part of combining quantum information science and spintronics, allowing for the investigation of quantum properties such as entanglement in solid-state devices. Magnons are commonly described using the theory of T. Holstein and H. READ MORE

3. 2. Robust non-Abelian geometric phases on three-qubit spin codes

   University essay from Uppsala universitet/Materialteori

   Author : Parham Azish; [2024]
   Keywords : Quantum information theory; Holonomic quantum computing; non-abelian systems;

   Abstract : Quantum holonomies are non-Abelian Geometric Phases predominantly observed in adiabatic, non-adiabatic, or measurement-based quantum evolutions. Their significance lies in their potential utility within quantum computing due to their robustness against noise throughout the parameter path. READ MORE

4. 3. Spin-Glass Behaviour in Ordered Solids

   University essay from Uppsala universitet/Materialteori

   Author : Erik Karpelin; [2023]
   Keywords : spin-glass; self-induced; variation; Edwards-Andersson; glassy;

   Abstract : The spin-glass is a peculiar magnetic phase, exhibiting non-trivial dynamics at low temperatures, characterized by an continuously evolving state without long-range order. The behavior requires some degree of disorder to occur, often in the way of impurities or random exchange energy between the spins. READ MORE

5. 4. Revival structure of the residual entanglement in a three-qubit system

   University essay from

   Author : Carl Agelii; Rasmus Andersson; William Bakke Lindblom; [2023]
   Keywords : qubit; tripartite entanglement; residual entanglement; antisymmetric exchange; Quantum Heisenberg model;

   Abstract : The quantum mechanical phenomenon of entanglement plays a key role in areas such as quantum computing and quantum information. Entangled half spin particles, often called qubits, are used to realize quantum based logic which means that studying systems of qubits and their properties is of vital importance to the development of the fields. READ MORE

6. 5. Creating Artificial Quantum Chiral States : Time Evolving Open Spin Chains

   University essay from Uppsala universitet/Materialteori

   Author : Emil Beiersdorf; [2023]
   Keywords : Quantum chirality; chirality; spin interaction; Heisenberg interaction; DM interaction; quantum physics; quantum mechanics; molecular nanomagnet; mathematical physics; theoretical physics; Kvantkiralitet; kiralitet; spinninteraktioner; Heisenberginteraktion; DMinteraktion; kvantfysik; kvantmekanik; molekylär nanomagnet; matematisk fysik; teoretisk fysik;

   Abstract : The discoveries in applications of chirality in various areas of science seem to never cease to emerge. Chirality, being the property that some objects are geometrically distinguishable from their mirror image, is a tiny difference of vast importance. READ MORE