| 词汇 | example_english_quantum-bit |
| 释义 | quantum bitcollocation in Englishmeanings of quantumand bitThese words are often used together. Click on the links below to explore the meanings. Or, see other collocations with bit. quantum noun[C] uk /ˈkwɒn.təm/ us /ˈkwɑːn.t̬əm/ the smallest amount or unit of something, ... See more at quantum bit noun[C] uk /bɪt/ us /bɪt/ informal a small piece or amount ... See more at bit Examples of quantum bitThese examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. In particular, if we immediately measure the same quantumbit again, we always get the same answer as the first time. Now let us see what happens if we measure the second quantumbit after the first one. Sometimes, we need to consider a permutation of quantum bits, such as exchanging the first with the second quantumbit in a sequence. The situation is more complex if more than one quantumbit is involved. This occurs when we try to 'observe' the value of a quantumbit and convert it into a classical bit. Note that this observation implies that there is effectively no difference between 'discarding' a quantumbit and simply 'forgetting' the quantumbit (by dropping any reference to it). In particular, it is not observable whether a 'forgotten' quantumbit has been collapsed or not. Quantum data is manipulated in terms of arrays of quantumbit references. This property can be used to send two classical bits along a channel that can hold a single quantum bit, in the presence of a pre-existing shared entangled quantum state. Quantum bits can be allocated and discarded; here it is understood that allocating a quantumbit means to request an unused quantum bit from the operating system. The quantum device provides a potentially large number of individually addressable quantum bits. Unitary transformations can be used to create quantum superpositions, and can also be used to create entanglement between quantum bits. For instance, distinctness checks are necessary because quantum operators can only be applied to lists of distinct quantum bits. Thus, the length of a list of quantum bits is a classically known quantity. The operating system keeps a list of quantum bits that are currently in use by each process. Typically, the quantum device will implement a fixed, finite set of unitary transformations that operate on one or two quantum bits at a time. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. Want to learn more? Go to the definition of quantum Go to the definition of bit See other collocations with bit |
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