Sökning: "quantum teleportation"

Visar resultat 1 - 5 av 6 uppsatser innehållade orden quantum teleportation.

  1. 1. Generation and detection of entangled single-photon pairs

    Kandidat-uppsats, Uppsala universitet/FREIA

    Författare :Gabriella Tesfamichael Habtezion; [2024]
    Nyckelord :;

    Sammanfattning : Quantum information technology is an emerging field with important applications such as quantum cryptography and teleportation, quantum imaging and lithography. These applications make use of single photons and pairs of entangled photons. In this work, we experimentally generate and attempt to detect the entangled photons. LÄS MER

  3. 2. Entanglement in a quantum heat engine

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

    Författare :Harald Öhrn; [2020]
    Nyckelord :Quantum physics; Entanglement; Quantum heat engine; Physics and Astronomy;

    Sammanfattning : In 2015 Jonatan Bohr Brask et al. showed that steady-state entanglement could be generated in two interacting qubits incoherently coupled to thermal baths of different temperatures [1]. LÄS MER

  4. 3. Quantum teleportation of single-electron states

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

    Författare :Edvin Olofsson; [2019]
    Nyckelord :Quantum teleportation; Quantum information; Quantum physics; Levitons; Floquet scattering theory; Mesoscopic physics; Nanophysics; Electron quantum optics; Physics and Astronomy;

    Sammanfattning : Quantum teleportation is a way to transfer a quantum state between two locations, by utilizing a shared entangled state, measurements and the ability to communicate measurement outcomes between the two locations. This thesis consists of a theoretical investigation of an experiment that would implement quantum teleportation using single-electron states in mesoscopic architectures. LÄS MER

  5. 4. Sensitivity of Various Qubit Detection Methods in Pr:Y2SiO5

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

    Författare :Vassily Kornienko; [2017]
    Nyckelord :Rare-earth ion quantum computing; Pr:Y2SiO5; Physics and Astronomy;

    Sammanfattning : The long coherence times of the 4f hyperfine levels of rare-earth-ions gives the possibility to use these as quantum computation devices. Moreover after being doped into a crystal the strong dipole-dipole interaction can be utilized to entangle them. Much work has been done here in Lund to attain as many of the DiVincenzo criteria as possible. LÄS MER

  7. 5. Quantum Entanglement and Cryptography

    Kandidat-uppsats, Uppsala universitet/Teoretisk fysik

    Författare :Sean Gray; [2014]
    Nyckelord :quantum entanglement; information theory; quantum information; quantum teleportation; quantum cryptography; key distribution;

    Sammanfattning : In this paper the features of quantum systems which lay the foundation of quantum entanglement are studied. General properties of entangled states are discussed, including their entropy and relation to Bell's inequality. Applications of entanglement, namely quantum teleportation and quantum cryptography, are also considered. . LÄS MER