Search results
Results from the WOW.Com Content Network
The general definition of a qubit as the quantum state of a two-level quantum system.In quantum computing, a qubit (/ ˈ k juː b ɪ t /) or quantum bit is a basic unit of quantum information—the quantum version of the classic binary bit physically realized with a two-state device.
The quantum volume of a quantum computer was originally defined in 2018 by Nikolaj Moll et al. [10] However, since around 2021 that definition has been supplanted by IBM's 2019 redefinition. [ 11 ] [ 12 ] The original definition depends on the number of qubits N as well as the number of steps that can be executed, the circuit depth d
Setting 8 π G = 1 (and therefore setting G = 1 / 8 π ). This would eliminate 8 π G from the Einstein field equations, Einstein–Hilbert action, and the Friedmann equations, for gravitation. Planck units modified so that 8 π G = 1 are known as reduced Planck units, because the Planck mass is divided by √ 8 π.
The one-way quantum computer, also known as measurement-based quantum computer (MBQC), is a method of quantum computing that first prepares an entangled resource state, usually a cluster state or graph state, then performs single qubit measurements on it. It is "one-way" because the resource state is destroyed by the measurements.
The conversion between the prefix units are as follows: 1000 mm 3 = 1 cm 3, 1000 cm 3 = 1 dm 3, and 1000 dm 3 = 1 m 3. [1] The metric system also includes the litre (L) as a unit of volume, where 1 L = 1 dm 3 = 1000 cm 3 = 0.001 m 3.
Conversions between units in the metric system are defined by their prefixes (for example, 1 kilogram = 1000 grams, 1 milligram = 0.001 grams) and are thus not listed in this article. Exceptions are made if the unit is commonly known by another name (for example, 1 micron = 10 −6 metre).
Sometimes specific volume is expressed in terms of the number of cubic centimeters occupied by one gram of a substance. In this case, the unit is the centimeter cubed per gram (cm 3 /g or cm 3 ·g −1). To convert m 3 /kg to cm 3 /g, multiply by 1000; conversely, multiply by 0.001. Specific volume is inversely proportional to density.
A royal cubit (gaz-i shāhī) appeared in the 17th century with 95 cm (37 + 1 ⁄ 2 in), while a "shortened" cubit (gaz-i mukassar) of 6.8 cm (2 + 11 ⁄ 16 in) (likely derived from the widely used cloth cubit of Aleppo) was used for cloth. [27] The measure survived into the 20th century, with 1 gaz equal to 104 cm (41 in). [27]