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Tag: gravitational

Enriched string-net models and their excitations

David Green1, Peter Huston2, Kyle Kawagoe1, David Penneys1, Anup Poudel1, and Sean Sanford11The Ohio State University2Vanderbilt UniversityFind this paper interesting or want to discuss?...

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Sequential hypothesis testing for continuously-monitored quantum systems

Giulio Gasbarri1, Matias Bilkis1,2, Elisabet Roda-Salichs1, and John Calsamiglia11Física Teòrica: Informació i Fenòmens Quàntics, Department de Física, Universitat Autònoma de Barcelona, 08193 Bellaterra (Barcelona),...

Could gravastars be nested inside one another like a Russian doll? – Physics World

Gravastars, hypothetical alternatives to black holes, could end up nested inside one another like a Russian Matryoshka doll  – according to new calculations that...

Swirling Forces, Crushing Pressures Measured in the Proton | Quanta Magazine

IntroductionPhysicists have begun to explore the proton as if it were a subatomic planet. Cutaway maps display newfound details of the particle’s interior. The...

What Is Quantum Teleportation? | Quanta Magazine

IntroductionQuantum teleportation isn’t just science fiction; it’s entirely real and happening in laboratories today. But teleporting quantum particles and information is a far cry...

A structure theorem for generalized-noncontextual ontological models

David Schmid1,2,3, John H. Selby1, Matthew F. Pusey4, and Robert W. Spekkens21International Centre for Theory of Quantum Technologies, University of Gdańsk, 80-308 Gdańsk, Poland2Perimeter...

Space-borne atoms herald new tests of Einstein’s equivalence principle – Physics World

The motion of freely-falling bodies is independent of their composition. This is one of the foundations of Einstein’s Equivalence Principle (EEP), which underpins our...

Gravity Experiments on the Kitchen Table: Why a Tiny, Tiny Measurement May Be a Big Leap Forward for Physics

Just over a week ago, European physicists announced they had measured the strength of gravity on the smallest scale ever. In a clever tabletop experiment,...

Fresh X-Rays Reveal a Universe as Clumpy as Cosmology Predicts | Quanta Magazine

IntroductionClusters of hundreds or thousands of galaxies sit at the intersections of giant, crisscrossing filaments of matter that form the tapestry of the cosmos....

Entanglement dynamics of photon pairs and quantum memories in the gravitational field of the earth

Roy Barzel1, Mustafa Gündoğan2,3, Markus Krutzik2,3,4, Dennis Rätzel1,2, and Claus Lämmerzahl1,51ZARM, University of Bremen, Am Fallturm 2, 28359 Bremen, Germany2Institut für Physik, Humboldt-Universität zu...

Dynamical quantum phase transitions from random matrix theory

David Pérez-García1, Leonardo Santilli2,3, and Miguel Tierz11Departamento de Análisis Matemático y Matemática Aplicada, Universidad Complutense de Madrid, 28040 Madrid, Spain2Yau Mathematical Sciences Center, Tsinghua...

What Is the Nature of Time? | Quanta Magazine

IntroductionTime seems linear to us: We remember the past, experience the present and predict the future, moving consecutively from one moment to the next....

Water observed on asteroids for the first time – Physics World

The first direct observation of water on the surface of an asteroid has been made using an airborne near-infrared telescope. Water was detected on...

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