Thought experiments and conservation laws: Reevaluating quantum conservation principles
Conservation laws are central to our understanding of the universe, and now scientists have expanded our understanding of these laws in quantum mechanics.
News tagged with classical physics
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quantum mechanics
· physical review letters
Study proves a generalization of Bell's theorem: Quantum correlations are genuinely tripartite and nonlocal
Quantum theory predicts the existence of so-called tripartite-entangled states, in which three quantum particles are related in a way that has no counterpart in classical physics. Theoretical physicists would like to understand ...
'Two-way signaling' possible with a single quantum particle
Classically, information travels in one direction only, from sender to receiver. In a new paper, however, physicists Flavio Del Santo at the University of Vienna and Borivoje Dakić at the Austrian Academy of Sciences have ...
Generalized Hardy's paradox shows an even stronger conflict between quantum and classical physics
In 1993, physicist Lucien Hardy proposed an experiment showing that there is a small probability (around 6-9%) of observing a particle and its antiparticle interacting with each other without annihilating—something that ...
Could classical theory be just as weird as quantum theory?
Quantum mechanics is often described as "weird" and "strange" because it abandons many of the intuitive traits of classical physics. For example, the ideas that the world is objective, is deterministic, and exists independent ...
Experiment investigates how classical physics may emerge from quantum physics
(Phys.org) —In order to better understand how the laws governing the quantum and classical regimes are related to one another, physicists have performed an experiment allowing them to observe a quantum-to-classical transition ...
Better light measurement through quantum cloning
(PhysOrg.com) -- "One of the things we have been studying is how the world works on a really small scale," Bruno Sanguinetti, a scientist at the University of Geneva in Switzerland tells PhysOrg.com. "At the quantum level, ...
Einstein equations indicate possibility of black hole formation at the LHC
(PhysOrg.com) -- One of the concerns that has been voiced about the Large Hadron Collider (LHC), is that it could result in the formation of black holes that could destroy the world. While most scientists dismiss claims that ...
It's Easier to Observe the Failure of Local Realism than Previously Thought
(PhysOrg.com) -- Local realism is something we live with every day, even if we don’t realize it. The principle of local realism combines two assumptions: locality and realism. Locality says that distant objects cannot directly ...
Researchers 'split' phonons in step toward new type of quantum computer
When we listen to our favorite song, what sounds like a continuous wave of music is actually transmitted as tiny packets of quantum particles called phonons.
General Physics
Jun 8, 2023
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