- exchange symmetry
- обменная симметрия
English-Russian electronics dictionary .
exchange symmetry
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Exchange symmetry — is derived from a fundamental postulate of quantum statistics, which states that no observable physical quantity should change after exchanging two identical particles. It states that because all observables are proportional to left| psi ight|^2… … Wikipedia
Exchange — may mean: * Trade or barter, the voluntary exchange of goods and/or services * Social exchange * Student exchange program or high school exchange * Exchange rule, from Mathematical Logic * The exchange (chess), the value difference between rook… … Wikipedia
Exchange interaction — In physics, the exchange interaction is a quantum mechanical effect without classical analog which increases or decreases the expectation value of the energy or distance between two or more identical particles when their wave functions overlap.… … Wikipedia
Exchange force — In particle physics, an exchange force is a force produced by the exchange of force carrier particles, such as the electromagnetic force produced by the exchange of photons between electrons and the strong force produced by the exchange of gluons … Wikipedia
Exchange bias — or exchange anisotropy occurs in bilayers (or multilayers) of magnetic materials where the hard magnetization behavior of an antiferromagnetic thin film causes a shift in the soft magnetization curve of a ferromagnetic film. The exchange bias… … Wikipedia
Symmetry — For other uses, see Symmetry (disambiguation) … Wikipedia
symmetry — /sim i tree/, n., pl. symmetries. 1. the correspondence in size, form, and arrangement of parts on opposite sides of a plane, line, or point; regularity of form or arrangement in terms of like, reciprocal, or corresponding parts. 2. the proper or … Universalium
Symmetry in mathematics — For other uses, see Symmetry (disambiguation) and Bilateral (disambiguation). Symmetry occurs not only in geometry, but also in other branches of mathematics. It is actually the same as invariance: the property that something does not change… … Wikipedia
exchange marriage — ▪ sociology form of marriage involving an arranged and reciprocal exchange of spouses between two groups. Exchange marriage is most common in societies that have a unilineal descent system emphasizing the male line (patrilineality) and a… … Universalium
Foreign-exchange option — Foreign exchange Exchange rates Currency band Exchange rate Exchange rate regime Exchange rate flexibility Dollarization Fixed exchange rate Floating exchange rate Linked exchange rate Managed float regime Markets Foreign exchange market Futures… … Wikipedia
Voice exchange — In music, a voice exchange (German: Stimmtausch, also called voice interchange) is the repetition of a contrapuntal passage with the voices parts exchanged; for instance, the melody of one part appears in a second part and vice versa. It differs… … Wikipedia
