Astrophysics and Cosmology through Problems - 1A
Mark Wyman - PDT Partners LLC , Niayesh Afshordi - University of Waterloo
15781 - 15792 of 17895 Results
Format results
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Probability in the many worlds interpretation (II)
Hilary Greaves - University of Oxford
From the LHC to the Multiverse
Gordon Kane - University of Michigan–Ann Arbor
The Lonely Multiverse of Holographic cosmology
Tom Banks - Rutgers University
Multiversal Pictures: Science and Signs of Other Universes
Rudy Vaas - University of Giessen
Probability in the Many-Worlds Interpretation
David Albert - Columbia University
What is the Multiverse?
Laura Mersini-Houghton - University of North Carolina at Chapel Hill
Abelian fibrations, string junctions and Flux/Geometry duality
Peng Gao - ExodusPoint Capital
Science in a Very Large Universe ; The Classical Multiverse of the No-Boundary Quantum State
James Hartle - University of California, Santa Barbara
Ultimate Explanations, Turtles and the Nature of the Laws of Physics
Paul Davies - Arizona State University
Identifying Stabilizer States
Daniel Gottesman - University of Maryland, College Park
Noninvertible Gauge Symmetry in (2+1)d Topological Orders: A String-Net Model Realization
Yidun Wan - Fudan University
In this talk, we develop a systematic framework for understanding symmetries in topological phases in \(2+1\) dimensions using the string-net model, encompassing both gauge symmetries that preserve anyon types and global symmetries permuting anyon types, including both invertible symmetries…
Tensorization of neural networks for improved privacy and interpretability
José Ramón Pareja Monturiol - Complutense University of Madrid
We present a tensorization algorithm for constructing tensor train representations of functions, drawing on sketching and cross interpolation ideas. The method only requires black-box access to the target function and a small set of sample points defining the domain of interest. Thus, it is…
Gravitational wave signatures of black hole mimicking objects
Nils Peter Siemonsen - Princeton University
Gravitational wave observations of strongly gravitating compact objects allow us not only to probe black holes and neutron stars, but also have the potential to uncover new fundamental physics. To distinguish black holes from their mimickers, sufficiently accurate predictions for gravitational wave…
Quantum Information-Inspired Tests of Quantum Gravity
Vlatko Vedral
I plan to review several ways of testing if the gravitational field has quantum aspects in the low energy regime. I explain why the hybrid (half quantum/half classical) models are inadequate and how they could be ruled out. Furthermore, I maintain that there is no prima facie reason to expect…
Einstein Telescope: A look at the dawn of the Universe
Fernando Ferroni
Gravitational waves were detected in 2015 after 100 years of their prediction. Coalescence of black holes and neutron stars have been studied giving birth to a new way of studying our Universe. The coincidence of the gravitational signal with a gamma ray burst has been identified as the beginning of…
Low-overhead fault-tolerant quantum computing with high-rate qLDPC codes
Xian Qu
High-rate quantum low-density parity-check (qLDPC) codes offer significantly lower encoding overhead compared to their topological counterparts by relaxing locality constraints. However, achieving full-fledged logical computation with these codes in physical systems with low space-time costs remains…
The BV-Logic of Spacetime Interventions
James Hefford
I will give a general method for producing a process theory of local spacetime events and higher-order transformations from any base process theory of first-order maps. This process theory models events as intervention-context pairs, uniting the local actions by agents with the structure of the…
Exploring Quantum Many-Body Scars: Anomalies to Thermalization in Quantum Systems
Julia Wildeboer - Brookhaven National Laboratory
Quantum many-body scars (QMBS) have emerged as a captivating anomaly within the landscape of quantum physics, challenging the conventional expectations of the eigenstate thermalization hypothesis (ETH). According to ETH, an isolated quantum system is expected to evolve toward thermal equilibrium…
OGRePy and Time Travel Paradoxes
Barak Shoshany - Brock University
Part I: OGRePy: Object-Oriented General Relativity in Python I will present a detailed introduction to my new Python package, OGRePy: (O)bject-Oriented (G)eneral (Re)lativity for (Py)thon, a port of my popular Mathematica package OGRe, which is used by many researchers in general relativity and…
Uniqueness of bipartite and multipartite quantum state over time
Recent efforts to formulate a unified, causally neutral approach to quantum theory have highlighted the need for a framework treating spatial and temporal correlations on an equal footing. Building on this motivation, we propose operationally inspired axioms for quantum states over time…