CHSH stands for John Clauser, Michael Horne, Abner Shimony and Richard Holt, who described it in a much-cited paper published in 1969 ( Clauser et al., 1969 ).

In their 1974 paper ( Clauser, 1974 ), Clauser and Horne show that the CHSH inequality can be derived from the CH74 one.

In physics, the CHSH inequality can be used in the proof of Bell's theorem, which states that certain consequences of entanglement in quantum mechanics cannot be reproduced by local hidden variable theories.

The mathematical formalism of quantum mechanics predicts a maximum value for S of, which is greater than 2, and CHSH violations are therefore predicted by the theory of quantum mechanics.

If it is numerically greater than 2 it has infringed the CHSH inequality and the experiment is declared to have supported the QM ( Quantum Mechanics ) prediction and ruled out all local hidden variable theories.

which includes the CHSH inequality.

To obtain the CHSH test statistic S ( expression ( 2 )), all that is needed is to multiply the inequalities for which j is different from k by − 1 and add these to the inequalities for which j and k are the same.

Many Bell test experiments conducted subsequent to Aspect's second experiment in 1982 have used the CHSH inequality, estimating the terms using ( 3 ) and assuming fair sampling.

Scheme of a CHSH " two-channel " optical Bell testThe source S is assumed to produce pairs of " photons ," one pair at a time with the individual photons sent in opposite directions.

The term " Bell inequality " can mean any one of a number of inequalities satisfied by local hidden variables theories ; in practice, in present day experiments, most often the CHSH ; earlier the CH74 inequality.

If S is numerically greater than 2 it has infringed the CHSH inequality.

The derivation of the inequality is given in the CHSH Bell test page.

As with the CHSH test, there are four subexperiments in which each polariser takes one of two possible settings, but in addition there are other subexperiments in which one or other polariser or both are absent.

The second was the first application of the CHSH inequality.

This test violated the CHSH inequality by over 30 standard deviations, the coincidence curves agreeing with those predicted by quantum theory.

There is no obvious way of including any other possibility, which is one of the reasons why Clauser and Horne's 1974 Bell test, using single-channel polarisers, should be used instead of the CHSH Bell test.

It concerns discussion and experimental determination of whether local hidden variables are required for, or even compatible with, the representation of experimental results ; with particular relevance to the EPR thought experiment and the CHSH inequality.

The quantum correlation is the key statistic in the CHSH and some of the other " Bell inequalities ", tests of which open the way for experimental discrimination between quantum mechanics on the one hand and local realism or local hidden variable theory on the other.

Readers of the Reader's Digest are familiar with such items which often appear in its lists of verbal slips, like the ad in a California paper that advertised `` House for rent.

For a better high-level introduction to Cyclone, the reasoning behind Cyclone and the source of these lists, see this paper.

For example, the experiments at the PEAR laboratory were criticized in a paper published by the Journal of Parapsychology, in which parapsychologists independent from the PEAR laboratory concluded that these experiments " depart from criteria usually expected in formal scientific experimentation " due to " roblems with regard to randomization, statistical baselines, application of statistical models, agent coding of descriptor lists, feedback to percipients, sensory cues, and precautions against cheating.

The United States lists the paper plant as one of the largest polluters of mercury in Maryland.

He built upon this idea in a paper to the ACM in 1965, calling the new idea " zippered lists ".

Variations range from e-cards with fixed greetings like a paper card to selectable greetings ( from drop-down lists or other selection options ) to changeable suggested greetings.

On recording the album, Collins recalled " gave us all a bit of paper, and we made lists from one to 15.

Developers meant this game for younger children who aren't able to learn from lists on paper.

In May 2012, Gillan unveiled a Wales Office green paper that made a proposal to cut the number of constituency assembly members from 40 to 30, with another 30 coming from regional lists.

PDM stems from traditional engineering design activities that created product drawings and schematics on paper and using CAD tools to create parts lists ( Bills of Material structures-BOM ).

There are also some cases of papers listed with U. T. Cobley as an author in reference lists, even though the name does not appear in the original paper.

The articles are presented in the format of a British Sunday newspaper, with the copy distributed in columns across the body of the paper, and commonly feature lists of items or instructions.

* The House beautiful gardening manual ; a comprehensive guide, æsthetic and practical, for all garden lovers, both those who are still planning their gardens on paper and those who have had gardening experience, including plant lists compiled with the help of horticulturalists in all sections of the country, and an introductory chapter on garden design by Fletcher Steele, Boston, The Atlantic monthly press, 1926.

Key distribution involved distribution of paper key lists that described the rotor arrangements, to be changed each day ( the cryptoperiod ) at midnight, GMT.

Printed in white type on black sheets of paper, these lists of seeming non sequiturs prompted viewers to consider the relationships and gaps between the diverse references as well the construction of individual and collective identities and memories.

* paper key-( NSA ) keys that are distributed in paper form, such as printed lists of settings for rotor machines, or keys in punched card or paper tape formats.

A Court of Survey in 1627 lists six mills running upstream from the boundary with Wooburn Parish: the paper mill, Tredway, Loudwater, Bassetsbury, Chalfonts ( Rye ) and Bridge.

Although Hearst claimed that the paper had lost money for years, The Journal Company, concerned about the loss of an important voice ( and facing questions about its own dominance of the Milwaukee media market ), agreed to buy the Sentinel name, subscription lists, and any " good will " associated with the name.

Dynkin's 1952 influential paper " Semisimple subalgebras of semisimple Lie algebras ", contained large tables and lists, and studied the subalgebras of the exceptional Lie algebras.

In her briefing paper on open access repositories, advocate Alma Swan lists the following as the benefits that repositories bring to institutions:

In the case of an academic paper, the title page also lists class information ( such as the course name and number ), identification information ( such as the student number ), the date, name of the professor, and name of the institution.

The subway pass — a small, rectangular ticket composed mainly of stiff paper — lists the period of time and the zones for which it is valid, as well as its price.

Behind him lay the Low Countries, where men were still completing the cathedrals that a later Florentine would describe as `` a malediction of little tabernacles, one on top of the other, with so many pyramids and spires and leaves that it is a wonder they stand up at all, for they look as though they were made of paper instead of stone or marble '' ; ;

There have been many extremely competent men who have been converted into very incompetent managers or submerged in paper work, to their own and the public's dissatisfaction and loss.

Scarcity of paper caused many Southerners to adopt the practice of cross-writing, i.e., after writing from left to right of the page in the usual manner, they gave the sheet a half turn and wrote from end to end across the lines previously written.

It was introduced in 1971 by Stephen Cook in his seminal paper " The complexity of theorem proving procedures " and is considered by many to be the most important open problem in the field.

It came two years before an inter-club rugby game under the auspices of the Rugby Football Union would be played in England ; though it must be remembered that rugby had been codified 24 years before this in 1845 and played by many schools, universities and clubs even before the laws were first put on paper.

In many countries, census returns could be made via the Internet as well as in paper form.

The novelty of these stocks, combined with the difficulty of valuing the companies, sent many stocks to dizzying heights and made the initial controllers of the company wildly rich on paper.

Cascarones, a North-Eastern Mexican tradition now shared by many in South Texas, are an emptied and dried chicken egg stuffed with confetti and sealed with a piece of tissue paper.

In many corporate environments, standalone fax machines have been replaced by fax servers and other computerized systems capable of receiving and storing incoming faxes electronically, and then routing them to users on paper or via an email ( which may be secured ).

The mimeograph machine, which forced ink through a wax paper stencil cut by the keys of a typewriter, was the standard for many decades.

Rapid production from the computer allows many designers to explore multiple ideas quickly with more detail than what could be achieved by traditional hand-rendering or paste-up on paper, moving the designer through the creative process more quickly.

In many cases, composite hulls are built by sandwiching thin fiber-reinforced skins over a lightweight but reasonably rigid core of foam, balsa wood, impregnated paper honeycomb or other material.

Harpsichords have been decorated in a great many different ways: with plain buff paint ( e. g. some Flemish instruments ), with paper printed with patterns, with leather or velvet coverings, with chinoiserie, or occasionally with highly elaborate painted artwork.

Sodium carbonate had many uses in the glass, textile, soap, and paper industries.

Although greatly improved and with many variations, the Fourdriner machine is the predominant means of paper production today.

The first support was Dr. Thorndike's paper ; the second was a concession by proponents of the systematic languages that thousands of words were already present in many – or even a majority – of the European languages.

Watt started to develop the process in 1779, and made many experiments to formulate the ink, select the thin paper, to devise a method for wetting the special thin paper, and to make a press suitable for applying the correct pressure to effect the transfer.

His early paper on the statistical mechanics of water, according to Michael J. Frisch, " remained the standard for many years.

Based in Paris, the paper had been established and was run by many activists connected to the revolutionary socialist League of the Just, which would come to be better known as the Communist League within a few years.

" In December, the paper announced that Beria and the six accomplices mentioned, " in the pay of foreign intelligence agencies ," had been " conspiring for many years to seize power in the Soviet Union and restore capitalism.

In 2000, the Chief of the NARA Document Conservation Laboratory defended the lack of a mass deacidification program by pointing to differences between library and archival collections, for example noting that many of the papers coming to NARA were of a higher quality than those in library collections ; that the Archives does not receive records from Federal government agencies until they are at least 30 years old, by which time acidic paper will have already been

In 1980, the Saints lost their first 14 games, prompting local sportscaster Bernard " Buddy D " Diliberto to advise Saints supporters to wear paper bags over their heads at the team's home games ; many bags rendered the club's name as the "' Aints " rather than the " Saints.

It has many uses such as a significant role in the paper and textile industries, and is used as a feedstock for the production of rayon ( via the viscose process ), cellulose acetate, celluloid, and nitrocellulose.

More recently, many security experts such as Bruce Schneier recommend that people use passwords that are too complicated to memorize, write them down on paper, and keep them in a wallet.