### Squeeze leads to stellar-mass black hole collision precision

Scientists at The Australian National University (ANU) have found a way to better detect all collisions of stellar-mass black holes in the universe.

Related topics:
quantum information
· quantum computing
· quantum mechanics
· physical review letters
· quantum physics

Scientists at The Australian National University (ANU) have found a way to better detect all collisions of stellar-mass black holes in the universe.

Optics & Photonics

Oct 31, 2019

1

500

Quantum mechanics is one of the most successful theories of natural science, and although its predictions are often counterintuitive, not a single experiment has been conducted to date of which the theory has not been able ...

Optics & Photonics

Oct 17, 2019

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134

An international team of scientists from Australia, Japan and the United States has produced a prototype of a large-scale quantum processor made of laser light.

Optics & Photonics

Oct 17, 2019

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3061

Entanglement is one of the properties specific to quantum particles. When two photons become entangled, for instance, the quantum state of the first will correlate perfectly with the quantum state of the second, even if they ...

Quantum Physics

Oct 16, 2019

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862

In quantum computing, as in team building, a little diversity can help get the job done better, computer scientists have discovered.

Quantum Physics

Oct 15, 2019

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A Monash University experimental study has fabricated a self-assembled, carbon-based nanofilm where the charge state (ie, electronically neutral or positive) can be controlled at the level of individual molecules, on a length ...

Nanophysics

Oct 14, 2019

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31

Researchers from the University of Maryland, the National Institute of Standards and Technology (NIST), the National High Magnetic Field Laboratory (NHMFL) and the University of Oxford have observed a rare phenomenon called ...

Superconductivity

Oct 07, 2019

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In a certain sense, physics is the study of the universe's symmetries. Physicists strive to understand how systems and symmetries change under various transformations.

Quantum Physics

Oct 07, 2019

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913

In quantum physics, Rydberg excitons with high principal value can exhibit strong dipole-dipole interactions. However, polaritons (quasiparticles) with an excitonic constituent in an excited state, known as Rydberg exciton ...

Quantum computing has the potential to revolutionize technology, medicine, and science by providing faster and more efficient processors, sensors, and communication devices.

Quantum Physics

Sep 25, 2019

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In quantum physics, a **quantum state** is a mathematical object that fully describes a quantum system. One typically imagines some experimental apparatus and procedure which "prepares" this quantum state; the mathematical object then reflects the setup of the apparatus. Quantum states can be statistically mixed, corresponding to an experiment involving a random change of the parameters. States obtained in this way are called **mixed states**, as opposed to **pure states**, which cannot be described as a mixture of others. When performing a certain measurement on a quantum state, the result generally described by a probability distribution, and the form that this distribution takes is completely determined by the quantum state and the observable describing the measurement. However, unlike in classical mechanics, the result of a measurement on even a pure quantum state is only determined probabilistically. This reflects a core difference between classical and quantum physics.

Mathematically, a pure quantum state is typically represented by a vector in a Hilbert space. In physics, bra-ket notation is often used to denote such vectors. Linear combinations (superpositions) of vectors can describe interference phenomena. Mixed quantum states are described by density matrices.

In a more general mathematical context, quantum states can be understood as positive normalized linear functionals on a C* algebra; see GNS construction.

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