Essays about: "entangled photons"

Found 5 essays containing the words entangled photons.

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

    University essay from Uppsala universitet/FREIA

    Author : Gabriella Tesfamichael Habtezion; [2024]
    Keywords : ;

    Abstract : 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. READ MORE

  3. 2. Sharing Quantum Resources Across a Metropolitan Network

    University essay from KTH/Tillämpad fysik

    Author : Martin Carlnäs; [2022]
    Keywords : QKD; Entanglement; SNSPD; Quantum Dot; Exciton; Biexciton; QKD; Kvantsammanflätning; SNSPD; Kvant Prick; Exciton; Biexciton;

    Abstract : Kvantsammanflätning har varit ett populärt ämne bland fysiker i snart 100 år då det tydligt belyser hur annorlunda kvantmekanikens värld är jämfört med den klassiska verklighet vi lever i. Med tiden har kvantsammanflätning blivit mer och mer välförstått och teknologier ämnade att utnyttja det har de senaste årtionden kommit allt närmare till industriell använding. READ MORE

  4. 3. Demonstrating quantum entanglement and Hong-Ou-Mandel effect, using type-II spontaneous parametric down conversion with C programming for data collection

    University essay from KTH/Fysik

    Author : Erik Svanberg; Johan Johannisson Lundquist; [2022]
    Keywords : Quantum entanglement; polarization; HOM; Hong-Ou-Mandel; indistinguishability; type-II SPDC; spontaneous parametric down conversion; non-linear crystal; beam splitter; indistinguishable photons; data collection in C;

    Abstract : Spontaneous parametric down conversion (SPDC) is used to generate quantum entangled photons through a non-linear crystal. The entanglement of photons is demonstrated by observing the effects of indistinguishability on photons, first through time and energy, then by polarization. The Hong-Ou-Mandel (HOM) effect was also demonstrated. READ MORE

  5. 4. Generating quantum entangled photons

    University essay from KTH/Skolan för teknikvetenskap (SCI)

    Author : Stephan Nieto; Daniel Sanaee; [2021]
    Keywords : ;

    Abstract : In this project a laser setup was constructed, quantum entangled photons were generated and two different methods were used to show said entanglement. The entangled photons were generated through a process called spontaneous parametric down conversion (SPDC). READ MORE

  6. 5. A high brightness source of entangled photons

    University essay from Lunds universitet/Teoretisk partikelfysik - Geonomgår omorganisation

    Author : Leo Wallin Sonesson; [2010]
    Keywords : entangled photons; Bell’s inequality; Sagnac interferometer; Local realism; Physics and Astronomy;

    Abstract : In the field of quantum optics and its wide variety of applications it is essential to have high brightness sources of entangled photons. In this Bachelor project, the aim has been to produce such a source based on recent experimental setups [1] [2] with a so-called Sagnac interferometer to generate polarization-entangled photons. READ MORE