In quantum mechanics, quantum correlation is the expected value of the product of the alternative outcomes. In other words, it is the expected change in...

In quantum field theory, correlation functions, often referred to as correlators or Green's functions, are vacuum expectation values of time-ordered products...

statistically violating Bell's inequality. This established that the correlations produced from quantum entanglement cannot be explained in terms of local hidden...

In quantum field theory, partition functions are generating functionals for correlation functions, making them key objects of study in the path integral...

stochastic processes they are applied to. In quantum field theory there are correlation functions over quantum distributions. For possibly distinct random...

aiding in the analysis of complex molecules. Heteronuclear multiple-quantum correlation spectroscopy (HMQC) gives an identical spectrum as HSQC, but using...

The heteronuclear single quantum coherence or heteronuclear single quantum correlation experiment, normally abbreviated as HSQC, is used frequently in...

Electronic correlation is the interaction between electrons in the electronic structure of a quantum system. The correlation energy is a measure of how...

means of correlation functions. More broadly, coherence describes the statistical similarity of a field, such as an electromagnetic field or quantum wave...

In quantum optics, correlation functions are used to characterize the statistical and coherence properties – the ability of waves to interfere – of electromagnetic...

that quantum vacuum fluctuations can influence the motion of macroscopic, human-scale objects by measuring correlations below the standard quantum limit...

on the use of input quantum correlations (in particular, quantum entanglement) combined with a suitable interferometric quantum detection at the receiver...

In quantum information theory, quantum discord is a measure of nonclassical correlations between two subsystems of a quantum system. It includes correlations...

Quantum imaging is a new sub-field of quantum optics that exploits quantum correlations such as quantum entanglement of the electromagnetic field in order...

physics, quantum field theory (QFT) is a theoretical framework that combines field theory and the principle of relativity with ideas behind quantum mechanics...

predicted by quantum theory. Bell showed that a local hidden variable hypothesis leads to restrictions on the strength of correlations of measurement...

sensors' quantum illumination of targets, which have been used to improve detection of weak signals by the use of quantum correlation. Quantum sensors...

A quantum computer is a computer that exploits quantum mechanical phenomena. On small scales, physical matter exhibits properties of both particles and...

mechanics, the correlation function is a measure of the order in a system, as characterized by a mathematical correlation function. Correlation functions describe...

In statistics, the Pearson correlation coefficient (PCC) is a correlation coefficient that measures linear correlation between two sets of data. It is...

physics, in the area of quantum information theory and quantum computation, quantum steering is a special kind of nonlocal correlation, which is intermediate...

photons in the signal and idler intracavity modes. This leads to a quantum correlation between the intensities of signal and idler fields, so that there...

proportional to the correlation time. Quantum fluctuations dominate the system's behavior in the region where ħω > kBT, known as the quantum critical region...

focus on determining the exact limits that classical or quantum physics enforces on the correlations observed in a Bell experiment or more complex causal...

"real" account. The state vector of conventional quantum mechanics becomes a description of the correlation of some degrees of freedom in the observer, with...

Hanbury Brown and Twiss (HBT) effect is any of a variety of correlation and anti-correlation effects in the intensities received by two detectors from a...

expectation values of the quantum fields. The effective action also acts as a generating functional for one-particle irreducible correlation functions. The potential...

be extremely complex. In such a quantum system, the repeated interactions between particles create quantum correlations, or entanglement. As a consequence...

(quantum correlations) between particles spread all over the universe; during the expansion, these particles became so distant that these correlations...

of all quantum physics, which includes quantum chemistry, quantum field theory, quantum technology, and quantum information science. Quantum mechanics...