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This article lists the companies worldwide engaged in the development of quantum computing, quantum communication and quantum sensing. Quantum computing and communication are two sub-fields of quantum information science , which describes and theorizes information science in terms of quantum physics .
This list contains quantum processors, also known as quantum processing units (QPUs). Some devices listed below have only been announced at press conferences so far, with no actual demonstrations or scientific publications characterizing the performance. Quantum processors are difficult to compare due to the different architectures and approaches.
Investors have been enamored with artificial intelligence (AI) stocks. Quantum computing stocks may be next. Companies such as Quantum Computing Inc. (NASDAQ: QUBT), IonQ (NYSE: IONQ), and Rigetti ...
In 2016, they brought on David Moehring from IARPA—where he was in charge of several quantum computing initiatives [10] [3] —to be the company's chief executive. [2] In 2017, they raised a $20 million series B, led by GV (formerly Google Ventures) and New Enterprise Associates, the first investment GV has made in quantum computing ...
Google is turning heads—including that of world’s richest man, ... many tech companies, including Google, have a history of exaggerated claims over so-called breakthroughs in quantum computing ...
The company said the new chip, called Willow, can perform a standard benchmark computation in under five minutes. ... Current quantum computers on the market are too small and make too many errors ...
Rigetti Computing was founded in 2013 by Chad Rigetti, a physicist with a background in quantum computers from IBM, and studied under Michel Devoret. [2] [3] The company emerged from startup incubator Y Combinator in 2014 as a so-called "spaceshot" company.
By contrast, quantum computers rely on qubits (quantum bits), which essentially allow data values to exist in different states at the time -- a phenomenon known as superposition.