Sökning: "quantum computation"

Visar resultat 36 - 40 av 58 avhandlingar innehållade orden quantum computation.

  1. 36. Using engineered broadband micropillar cavity photon pair source based on quantum dots to study two-photon interference and its dependency on temporal correlation, decoherence, and postselection

    Författare :Jaewon Lee; Ana Predojević; Fredrik Laurell; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Physics; fysik;

    Sammanfattning : Entangled photon pairs play a crucial role in quantum information processing such as quantumkey distribution, linear optical quantum computation, quantum teleportation, entanglement swapping, etc. Quantum dots have gathered much attention due to their deterministic generation of the photon pairs. LÄS MER

  3. 37. Superconductor Digital Signal Processor

    Författare :Irina Kataeva; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Rapid Single Flux Quantum logic RSFQ ; multiuser detector; VHDL; Multiply-Accumulate Unit; Successive Interference Canceller;

    Sammanfattning : Superconductor digital technology based on Rapid Single Flux Quantum logic (RSFQ) offers more than 50 times gain in speed and more than 100 reduction in power consumption over mainstream CMOS devices. However, the necessity of cooling down to 4 K and modest degree of integration density currently available mean that employing RSFQ is reasonable only for the tasks that are impossible or ineffective to implement in CMOS technology. LÄS MER

  4. 38. Solid state NMR of multiple-spin systems

    Författare :Mattias Edén; Joseph Virlet; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Physical Chemistry; fysikalisk kemi;

    Sammanfattning : Many nuclear magnetic resonance (NMR) experiments subject the nuclear spins to time-periodic modulations, for example, mechanical sample rotation and irradiation by periodic radio-frequency pulse sequences. An efficient simulation algorithm (COMPUTE) has been proposed for calculating NMR spectra from such systems. LÄS MER

  5. 39. Applications of motional control in trapped Rydberg ion experiments

    Författare :Harry Parke; Markus Hennrich; Matthias Keller; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; trapped Rydberg ions; ion trapping; motional control of trapped ions; Rydberg; Physics; fysik;

    Sammanfattning : Trapped ion systems are one of the leading technologies for the development of various novel quantum devices, including computers, simulators and enhanced sensors. Ion traps offer a high level of control in terms of both the electronic and motional states of individual quantum systems. LÄS MER

  7. 40. Theory for superconducting few-photon detectors

    Författare :Mattias Jönsson; Jack Lidmar; Mats Wallin; Marcin Swillo; Karl Berggren; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Fysik; Physics;

    Sammanfattning : High-performance photon detectors are essential for fiber communication, which is the foundation of the modern internet. Emerging quantum information technologies, such as quantum key distribution, impose new requirements on the photon detectors used. LÄS MER