Search for dissertations about: "2 qubits"

Showing result 1 - 5 of 27 swedish dissertations containing the words 2 qubits.

2. 1. Controllable coupling of superconducting qubits and implementation of quantum gate protocols

   Author : Margareta Wallquist; Chalmers tekniska högskola; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Controllable Qubit-Coupling; Single Cooper-Pair Box; Josephson Effect; Quantum Gate; Superconducting Circuit; Quantum Computer; Qubit; Quantum Electrical Circuit;

   Abstract : The concept of a quantum computer was invented in the beginning of the 1980s as a quantum generalization of the reversible classical computer. After discoveries in the middle of the 1990s of quantum algorithms, which wouldsolve some problems considered intractable for classical computers, the field of quantum computing has developed rapidly. READ MORE

4. 2. Quantum acoustics with superconducting circuits

   Author : Gustav Andersson; Chalmers tekniska högskola; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; superconducting qubits; cluster states; SAW; two-level systems; circuit QED; giant atoms; two-mode squeezing; surface acoustic wave; quantum acoustics; hybrid quantum systems;

   Abstract : The past 20 years has seen rapid developments in circuit quantum electrodynamics, where superconducting qubits and resonators are used to control and study quantum light-matter interaction at a fundamental level. The development of this field is strongly influenced by quantum information science and the prospect of realizing quantum computation, but also opens up opportunities for combinations of different physical systems and research areas. READ MORE

5. 3. Cerium as a quantum state probe for rare-earth qubits in a crystal

   Author : Jenny Karlsson; Atomfysik; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Spectroscopy; Quantum Computing; Rare-earth-ion-doped crystals; Microscopy; Fysicumarkivet A:2015:Karlsson;

   Abstract : Rare-earth ions doped into a transparent crystal can have optically excited states with coherence times of milliseconds and hyperfine levels with coherence times of hours when cooled down to liquid helium temperatures. This makes them attractive for developing quantum computing hardware. READ MORE

6. 4. Transport in nanowire-based quantum dot systems: Heating electrons and confining holes

   Author : Sven Dorsch; NanoLund: Centre for Nanoscience; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Nanowire; Quantum dot; double quantum dot; Thermoelectric effect; Phonon-assisted transport; GaSb; g-factor; Fysicumarkivet A:2022:Dorsch;

   Abstract : Quantum dots embedded in an electronic circuit allow precise control over the charge transport behaviour of the system: Charge carriers can be individually trapped or precisely shuffled between a series of quantum dots in a strictly sequential manner. This introduces ideal conditions to study fundamental quantum physics and such devices are in the focus of extensive efforts to develop quantum information related applications. READ MORE

7. 5. Building a Bosonic Microwave Qubit

   Author : Marina Kudra; Chalmers tekniska högskola; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; 3D cavity; qubit; cubic phase state; continuous variable; circuit QED; bosonic codes; GKP-state; superconducting circuits;

   Abstract : Superconducting circuits is a promising platform for quantum computing. Quantum information is usually stored in discrete two-level qubits e.g. in transmon qubits. READ MORE