Quantum States as Uncertainty, pure and simple. But, Uncertainty about What? (Part 2)
Chris Fuchs - University of Massachusetts Boston
16573 - 16584 of 17905 Results
Format results
-
Time symmetric quantum theory, weak measurements, and modular variables (Part 1B)
Sandu Popescu - University of Bristol
Time symmetric quantum theory, weak measurements, and modular variables (Part 1A)
Sandu Popescu - University of Bristol
Quantum States as Uncertainty, pure and simple. But, Uncertainty about What? (Part 1)
Chris Fuchs - University of Massachusetts Boston
Operationalism, hidden variable models, and contextuality (Part 1B)
Robert Spekkens - Perimeter Institute for Theoretical Physics
Operationalism, hidden variable models, and contextuality (Part 1A)
Robert Spekkens - Perimeter Institute for Theoretical Physics
Introduction to quantum foundations (Part 1B)
Jeremy Butterfield - University of Cambridge
Introduction to quantum foundations (Part 1A)
Jeremy Butterfield - University of Cambridge
The Strange Quantum: What does it mean and how can we use it? ISSYP Keynote Session
Robert Spekkens - Perimeter Institute for Theoretical Physics
Large Extra Dimensions - ISSYP Keynote Session
Sabine Hossenfelder - Ludwig-Maximilians-Universität München (LMU)
Canonical Quantization of Singular Configuration Spaces: Symmetry Reduction, Mass Gap Bounds, and Non-smooth Calculus
Luca Mrini - University of Vienna
In this work-in-progress, we study the quantization of singular configuration spaces, generalizing the canonical structures of smooth quantum mechanics. We develop a framework for constructing a Hilbert space of quantum states, generalized position and momentum operators, a kinetic-plus-potential…
Localized covariant quantities appear to underlie quantum systems
Any quantum system can be closely approximated by a quantum circuit with spatially-localized qubits. We analyze such quantum circuits and present evidence that the local weak values comprise a covariant tensor associated with each individual qubit. Even if the state is massively entangled, these…
Robust characterization of average gate set noise and cross-talk using gate-set shadows
Jadwiga Wilkens - Johannes Kepler University of Linz
As quantum processors scale, robust and scalable tools to characterize gate-level noise become indispensable. Randomized benchmarking (RB) and its many variants have emerged as the go-to protocols in practice: they yield a single number to characterize a gate set, the average gate fidelity, per…
Lecture - Quantum Theory (Core), PHYS 605
David Schmid - Perimeter Institute for Theoretical Physics
Wilsonian Renormalization of Neural Network Field Theories
Zohar Ringel - Hebrew University of Jerusalem
Neural scaling laws and hyperparameter transfer scaling laws play an increasingly dominant role in deep learning. In physics, scaling behaviour pointed directly to the Wilsonian Renormalisation Group (RG). In this seminar talk, I'll present our ongoing efforts to build an RG framework for deep…
Instructor Discussion - Beautiful Papers
Pedro Vieira - Perimeter Institute for Theoretical Physics
PIRSA:26090026 Course Condensed Matter Mathematical physics Quantum Fields and Strings Quantum Information
Student Discussion - Beautiful Papers
Pedro Vieira - Perimeter Institute for Theoretical Physics
PIRSA:26090025 Course Condensed Matter Mathematical physics Quantum Fields and Strings Quantum Information
Scattering matrices for noncommutative instantons
Spencer Tamagni - University of California, Berkeley
The assignment of scattering data to monopoles is a classical construction in gauge theory useful to understand the geometry of monopole moduli spaces; from the modern perspective, it is of interest because monopole scattering matrices are quasiclassical limits of R-matrices of shifted Yangians. I…
Quantum Geometry of the Light Cone
Wolfgang Wieland - University of Erlangen-Nuremberg
In Einstein's theory of general relativity, the causal structure of spacetime is itself dynamical. Causality is encoded into the geometry of light cones that bend under the influence of gravity. Quantum theory, on the other hand, tells us that nature is intrinsically probabilistic. A sharply defined…
Beyond Measurement: Exponential Advantages in Coherent Quantum Inference
Zhaoyi Li
Quantum inference usually begins by measuring quantum data and converting it into classical information. In this talk, I will consider a different setting in which the desired output remains quantum, allowing coherence to be preserved throughout the inference process. Examples include quantum purity…