Quantum Machine Learning
Article by ICFO - The Institute of Photonic Sciences
An international team of scientists presents a thorough review in Nature on quantum machine learning, its current status and future prospects.
Article by ICFO - The Institute of Photonic Sciences
An international team of scientists presents a thorough review in Nature on quantum machine learning, its current status and future prospects.
I will report on dynamical magnetic susceptibility measurements of
both bulk and thin film samples of the spin glass Copper Manganese.
By studying the Thermoremanent Magnetization (TRM) of multi-layer thin
films of various thicknesses, we are able to show the maximum energy
barrier encountered during correlated spin flip transitions is cut off
by the thickness of the film and is independent of temperature. The
distribution of energy barriers is shown to follow from a hierarchical
Hear Raymond Laflamme, founding director of the Institute for Quantum Computing and John von Neumann Chair in Quantum Information and Edwin Outwater, Music Director Laureate of the Kitchener-Waterloo Symphony, as they have a conversation about the making of Does God Play Dice (Quantum Etude).
Radio host Mike Farwell will moderate this conversation about their collaboration that integrated quantum physics and music to create a surprisingly random performance piece. You’ll even have the to watch highlights of the April 20 performance.
I will present a realization of a great photon pair source based on parametric down-conversion, and discuss a not-so-great limit to the performance of photon pair sources in general. The former is a fully fiber-coupled waveguide pair source with 46% raw heralding efficiency, and no optical alignment required. The latter restricts the achievable heralding efficiency, when spectrally filtering the photons to increase the purity.
Recent rapid advancements in nanofabrication technologies have widened the realm of possibilities in nanophotonics, nonlinear and sub-wavelength optics. Realizing nonlinear optics in subwavelength scale paves the way for low cost integrated photonics. Ultra-high-Q photonic crystal nanocavities and nanostructured materials are examples of such structures. Those structures offer very small mode volume guaranteeing highly enhanced field intensity.
An approach to quantum random number generation based on unambiguous quantum state discrimination (USD) is developed. We consider a prepare-and-measure protocol, where two non-orthogonal quantum states can be prepared, and a measurement device aims at unambiguously discriminating between them.
Motivated by their necessity for most fault-tolerant quantum computation schemes, we formulate a resource theory for magic states. We first show that robustness of magic is a well-behaved magic monotone that operationally quantifies the classical simulation overhead for a Gottesman-Knill type scheme using ancillary magic states. Our framework subsequently finds immediate application in the task of synthesizing non-Clifford gates using magic states.
An essential prerequisite for quantum information processing is precise coherent control of the dynamics of quantum systems or quantum bits (qubits). Most of the control sequences implemented in quantum experiments are developed and designed based on the assumption of having ideal (closed) quantum coherent systems.
In a recent survey, nearly 1 in 3 Americans said they would rather clean a toilet than do a single math problem. Tell someone on the street that you are a physicist, or worse, a mathematician, and you’ll be acknowledged with a “I hated math in school” or “I was never any good at math.” Tell them you are a quantum physicist and you’ll be lucky if you get a response. Chris Ferrie plans to vanquish those doubts and fears by introducing children to quantum physics. But, how young is too young? Enter Quantum Physics for Babies.
Hear from author and quantum theorist Chris Ferrie, IQC and University of Waterloo, Faculty of Mathematics alumnus, about his experience in communicating quantum information science to a larger audience. This general talk is suitable for all audiences.
Philip Kim is an experimental condensed matter physicist. The focus of Kim’s group’s research is the mesoscopic investigation of various physical phenomena in low dimensional and nanostructured materials.