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### Quantum Research News | What Is Quantum Superposition?

For the first time ever, physicists tested the phenomenon of quantum superposition using molecules. That's a big deal. Oct 2, 2019 ... In a phenomenon called quantum superposition, for example, individual units (say, of light) exist in two states at once. They are both waves and ...
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### Quantum Superposition Of Massive Objects And Collapse Models

We analyze the requirements to test some of the most paradigmatic collapse models with a protocol that prepares quantum superpositions of massive objects. This consists of coherently expanding the wave function of a ground-state-cooled mechanical resonator, performing a squared position measurement that acts as a double slit, and observing interference after further evolution. The analysis is performed in a general framework and takes into account only unavoidable sources of decoherence: blackbody radiation and scattering of environmental particles. We also discuss the limitations imposed by the experimental implementation of this protocol using cavity quantum optomechanics with levitating dielectric nanospheres. Nov 28, 2011 ... We analyze the requirements to test some of the most paradigmatic collapse models with a protocol that prepares quantum superpositions of ...
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### Quantum Superposition Of Massive Objects And The Quantization Of ...

We analyse a gedankenexperiment previously considered by Mari et al. that
involves quantum superpositions of charged and/or massive bodies ("particles")
under the control of the observers, Alice and Bob. In the electromagnetic case,
we show that the quantization of electromagnetic radiation (which causes
decoherence of Alice's particle) and vacuum fluctuations of the electromagnetic
field (which limits Bob's ability to localize his particle to better than a
charge-radius) both are essential for avoiding apparent paradoxes with
causality and complementarity. We then analyze the gravitational version of
this gedankenexperiment. We correct an error in the analysis of Mari et al. and
of Baym and Ozawa, who did not properly account for the conservation of center
of mass of an isolated system. We show that the analysis of the gravitational
case is in complete parallel with the electromagnetic case provided that
gravitational radiation is quantized and that vacuum fluctuations limit the
localization of a particle to Jul 18, 2018 ... that involves quantum superpositions of charged and/or massive bodies ("particles") under the control of the observers, Alice and Bob. In the ...
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### Photons Created In A Superposition Of Two Colours – Physics World

Multicoloured qubits could boost quantum computing Nov 29, 2016 ... Superposition is an important concept of quantum mechanics that allows a physical system to be in two or more quantum states at the same time – ...
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### Article Quantum Superposition Inspired Spiking Neural Network

Despite advances in artificial intelligence models, neural networks still cannot achieve human performance, partly due to differences in how informati… Aug 20, 2021 ... In our proposed quantum superposition SNN (QS-SNN) model, quantum state representation is integrated with spatiotemporal spike trains in SNN.
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### Quantum Physics May Be Even Spookier Than You Think - Scientific ...

A new experiment hints at surprising hidden mechanics of quantum superpositions May 21, 2018 ... It is the central question in quantum mechanics, and no one knows the answer: What really happens in a superposition—the peculiar ...
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### Quantum Superposition At The Half-metre Scale

The quantum superposition principle allows massive particles to be delocalized over distant positions. Though quantum mechanics has proved adept at describing the microscopic world, quantum superposition runs counter to intuitive conceptions of reality and locality when extended to the macroscopic s … Dec 24, 2015 ... The quantum superposition principle allows massive particles to be delocalized over distant positions. Though quantum mechanics has proved ...
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### What Is Quantum Superposition? | Caltech Science Exchange

One of the fundamental principles of quantum mechanics, superposition explains how a quantum state can be represented as the sum of two or more states. Waves would spread outward from each point, eventually overlapping to form a more complex pattern. This is a superposition of waves. Similarly, in quantum ...
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### Quantum Superposition Of Massive Objects And The Quantization Of ...

We analyze a Gedankenexperiment previously considered by Mari et al. [Sci. Rep. 6, 22777 (2016).] that involves quantum superpositions of charged and/or massive bodies (``particles'') under the control of the observers, Alice and Bob. In the electromagnetic case, we show that the quantization of electromagnetic radiation (which causes decoherence of Alice's particle) and vacuum fluctuations of the electromagnetic field (which limits Bob's ability to localize his particle to better than a charge-radius), both are essential for avoiding apparent paradoxes with causality and complementarity. We then analyze the gravitational version of this Gedankenexperiment. We correct an error in the analysis of Mari et al. [Sci. Rep. 6, 22777 (2016).] and of Baym and Ozawa [Proc. Natl. Acad. Sci. U.S.A. 106, 3035 (2009).], who did not properly account for the conservation of center of mass of an isolated system. We show that the analysis of the gravitational case is in complete parallel with the electromagnetic case, provide Dec 18, 2018 ... that involves quantum superpositions of charged and/or massive bodies (``particles'') under the control of the observers, Alice and Bob.
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**The pages related to quantum superposition are also listed below: **

### Scientists Visualize Electron Crystals In A Quantum Superposition ...

Princeton scientists are using innovative techniques to visualize electrons in graphene, a single atomic layer of carbon atoms. They are finding that strong interactions between electrons in high magnetic fields drive them to form unusual crystal-like structures similar to those first recognized for benzene molecules in the 1860s by chemist Augu... Feb 23, 2022 ... Princeton scientists are using innovative techniques to visualize electrons in graphene, a single atomic layer of carbon atoms.
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### Quantum Superposition - Wikipedia

It states that, much like waves in classical physics, any two (or more) quantum states can be added together ("superposed") and the result will be another valid ...
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