Novel Applications and Noise-enabled Control for a Trapped-ion Quantum Simulator
Trapped atomic ions are a highly versatile platform for quantum simulation and computation. In this talk, I will provide a brief description of the quantum control that enables both analog and digital modes of quantum simulation on this platform before reporting on two recent results: a digital quantum simulation that measured the first out-of-time-order correlators in a thermal system, and an analog simulation of particles with exotic statistics.
Tailoring three-dimensional topological codes for biased noise
(Pizza and refreshments will be served after the talk.)
Integrated Photonic Quantum Information Processing
Abstract: In recent years, photonics has become one of the key contenders in the race to build large-scale quantum computers. The prominence of photonics as a quantum information technology is underscored by the fact that it is one of only a handful of technology platforms which has achieved a quantum advantage, i.e., a large-scale quantum system which outperforms a classical supercomputer at some well-defined computational task [1 2].
Non-Abelian symmetry can increase entanglement entropy
Abstract: The pillars of quantum theory include entanglement and operators' failure to commute. The Page curve quantifies the bipartite entanglement of a many-body system in a random pure state. This entanglement is known to decrease if one constrains extensive observables that commute with each other (Abelian ``charges''). Non-Abelian charges, which fail to commute with each other, are of current interest in quantum information and thermodynamics.
Bosonic Qiskit: Qubit-boson quantum circuits for simulating lattice gauge theories
(Pizza and refreshments will be served after the talk.)
Good Gottesman-Kitaev-Preskill codes from the NTRU cryptosystem
In recent years Gottesman-Kitaev-Preskill (GKP) codes have witnessed an increasing amount of interest for both their theoretically interesting features and as a possible route towards scalable hardware-efficient error correction.
Quantum Back-action Limits in Dispersively Measured Bose-Einstein Condensates
In recent years, there have been rapid breakthroughs in quantum technologies that offer new opportunities for advancing the understanding of basic quantum phenomena; realizing novel strongly correlated systems; and enhancing applications in quantum communication, computation, and sensing. Cutting edge quantum technologies simultaneously require high fidelity quantum-limited measurements and control.
Entanglement and measurement in atom arrays
Abstract: Arrays of neutral atoms promise to enable a variety of experiments across quantum science, including quantum information processing, metrology, and many-body physics. While there have been recent significant improvements in quantum control, coherence times, and entanglement generation, one outstanding limitation is the efficient implementation of dissipation or measurement.
Optical quantum measurement: from fundamental physics to applications
Abstract: Faint states of light occur in multiple contexts, from fundamental physics to quantum information science to remote sensing and biology. At the same time, faint light naturally lends itself to optical quantum measurements. Such measurements not only enable detecting and using quantum properties of light such as entanglement and antibunching - but they also become a tool to observe and quantify quantum processes inside faint light sources.