Quantum information

Southwest Quantum Information and Technology

  • By Leena Aggarwal
  • 8 January 2018

SQuInT is a consortium of universities, national labs, and industrial labs, with concentration in the southwestern United States. The SQuInT meeting has a strong tradition of mixing invited talks from world-class leading researchers with talks by junior researchers across the SQuInT network, to promote an interactive environment. The meeting brings together the broad community of researchers in Quantum Information Science, including experimental physicists, theorists, and computer scientists.

The 20th Annual SQuInT Workshop is being organized by the Center for Quantum Information and Control (CQuIC). The CQuIC is a research center co-located at the University of New Mexico in Albuquerque and the University of Arizona in Tucson. Research at CQuIC is focused on on quantum information and computation, quantum control and measurement, quantum metrology, and quantum optics and communication, and they have extensive theoretical and experimental research programs in all these areas

    Quantum Information Processing with 4 Electrons and 10^6 Nuclei

    Speaker(s): 
    John Nichol
    Dates: 
    Tuesday, November 15, 2016 - 1:00pm to 2:00pm

    Individual spins in semiconductors can retain their quantum phase coherence for times exceeding one second. Such long coherence times makes spins a versatile platform for exploring quantum information processing and condensed matter physics. I will discuss recent work exploiting the joint spin-state of two electrons in a GaAs double quantum dot as a spin qubit. This qubit is highly sensitive to its local magnetic environment. We leverage this sensitivity to precisely measure the statistically fluctuating nuclear polarization in the semiconductor crystal....

    Quantum Information Science

    • By Aude Marjolin
    • 29 August 2016

    Quantum Information Science (QIS) supports theoretical and experimental proposals that explore quantum applications to new computing paradigms or that foster interactions between physicists, mathematicians, and computerscientists that push the frontiers of quantum-based information, transmission, and manipulation. 

    The quantum information science program is focused on investigations relevant to disciplines supported by the Physics Division, while encouraging broader impacts on other disciplines. Disciplines within the purview of the Physics Division include: atomic, molecular, optical, plasma, elementary particle, nuclear, gravitational and biological physics, particle astrophysics, and accelerator science. 

    Confining the State of Light to a Quantum Manifold by Engineered Two-Photon Loss

    • By Workstudy User
    • 15 December 2015

    Dynamical systems, whether classical or quantum, usually require a method to stabilize performance and maintain the required state. For instance, communication between computers requires error correction codes to ensure that information is transferred correctly. In a quantum system, however, the very act of measuring it can perturb it.