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Atom Computing
Atom Computing Inc. is a quantum computing company headquartered in Berkeley, California with a commercial operations facility in Boulder, Colorado. The company develops quantum computers based on neutral atom technology. History Atom Computing was founded by Ben Bloom and Jonathan King in 2018 with $5M in seed funding. In 2021 the company secured $15M in Series A funding and announced a 100-qubit prototype system. By early 2022 the company secured $60M in Series B funding and expanded its activities by opening a commercial operations facility in Boulder, Colorado. In 2023 Atom Computing announced its second-generation quantum computer with over 1,000 qubits. Microsoft and Atom Computing announced in late 2024 that they had been collaborating on a commercial quantum computer that has logical qubits by combining Microsoft's work on quantum error correction with Atom's over-1,000-qubit system. Technology Atom Computing's technology is based on neutral atoms, specifically al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Private Company
A privately held company (or simply a private company) is a company whose Stock, shares and related rights or obligations are not offered for public subscription or publicly negotiated in their respective listed markets. Instead, the Private equity, company's stock is offered, owned, traded or exchanged privately, also known as "over-the-counter (finance), over-the-counter". Related terms are unlisted organisation, unquoted company and private equity. Private companies are often less well-known than their public company, publicly traded counterparts but still have major importance in the world's economy. For example, in 2008, the 441 list of largest private non-governmental companies by revenue, largest private companies in the United States accounted for $1.8 trillion in revenues and employed 6.2 million people, according to ''Forbes''. In general, all companies that are not owned by the government are classified as private enterprises. This definition encompasses both publ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quantum Logic Gate
In quantum computing and specifically the quantum circuit model of computation, a quantum logic gate (or simply quantum gate) is a basic quantum circuit operating on a small number of qubits. Quantum logic gates are the building blocks of quantum circuits, like classical logic gates are for conventional digital circuits. Unlike many classical logic gates, quantum logic gates are reversible. It is possible to perform classical computing using only reversible gates. For example, the reversible Toffoli gate can implement all Boolean functions, often at the cost of having to use ancilla bits. The Toffoli gate has a direct quantum equivalent, showing that quantum circuits can perform all operations performed by classical circuits. Quantum gates are unitary operators, and are described as unitary matrices relative to some orthonormal basis. Usually the ''computational basis'' is used, which unless comparing it with something, just means that for a ''d''-level quantum system ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Computer Companies Of The United States
A computer is a machine that can be Computer programming, programmed to automatically Execution (computing), carry out sequences of arithmetic or logical operations (''computation''). Modern digital electronic computers can perform generic sets of operations known as Computer program, ''programs'', which enable computers to perform a wide range of tasks. The term computer system may refer to a nominally complete computer that includes the Computer hardware, hardware, operating system, software, and peripheral equipment needed and used for full operation; or to a group of computers that are linked and function together, such as a computer network or computer cluster. A broad range of Programmable logic controller, industrial and Consumer electronics, consumer products use computers as control systems, including simple special-purpose devices like microwave ovens and remote controls, and factory devices like industrial robots. Computers are at the core of general-purpose devices ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xanadu Quantum Technologies
Xanadu Quantum Technologies is a Canadian quantum computing hardware and software company headquartered in Toronto, Ontario. The company develops cloud accessible photonic quantum computers and develops open-source software for quantum machine learning and simulating quantum photonic devices. History Xanadu was founded in 2016 by Christian Weedbrook and was a participant in the Creative Destruction Lab's accelerator program. Since then, Xanadu has raised a total of US$245M in funding with venture capital financing from Bessemer Venture Partners, Capricorn Investment Group, Tiger Global Management, In-Q-Tel, Business Development Bank of Canada, OMERS Ventures, Georgian, Real Ventures, Golden Ventures and Radical Ventures and innovation grants from Sustainable Development Technology Canada and DARPA. Technology Xanadu's hardware efforts have been focused on developing programmable Gaussian boson sampling (GBS) devices. GBS is a generalization of boson sampling, which tradit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quantinuum
Quantinuum is a quantum computing company formed by the merger of Cambridge Quantum and Honeywell Quantum Solutions. The company's H-Series trapped-ion quantum computers set the highest quantum volume to date of 1,048,576 in April 2024. This architecture supports all-to-all qubit connectivity, allowing entangled states to be created between all qubits, and enables a high fidelity of quantum states. Quantinuum has developed middleware and software products that run on trapped-ion and other quantum computing platforms for cybersecurity, quantum chemistry, quantum machine learning, quantum Monte Carlo integration, and quantum artificial intelligence. The company also offers quantum-computing-hardened encryption keys designed to protect data assets and enhance cryptographic defenses. History Formed in 2021, Quantinuum is the combination of the quantum hardware team from Honeywell Quantum Solutions (HQS) and the quantum software team at Cambridge Quantum Computing (CQC). HQS was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rigetti Computing
Rigetti Computing, Inc. is a Berkeley, California-based developer of Superconducting quantum integrated circuits used for quantum computers. Rigetti also develops a cloud platform called Forest that enables programmers to write quantum algorithms. History Rigetti Computing was founded in 2013 by Chad Rigetti, a physicist with a background in quantum computers from IBM, and studied under Michel Devoret. The company emerged from startup incubator Y Combinator in 2014 as a so-called "spaceshot" company. Later that year, Rigetti also participated in The Alchemist Accelerator, a venture capital programme. By February 2016, Rigetti created its first quantum processor, a three-qubit chip made using aluminum circuits on a silicon wafer. That same year, Rigetti raised Series A funding of US$24 million in a round led by Andreessen Horowitz. In November, the company secured Series B funding of $40 million in a round led by investment firm Vy Capital, along with additional funding fro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IonQ
IonQ, Inc. is an American quantum computing hardware and software company headquartered in College Park, Maryland. The company develops general-purpose trapped ion quantum computers and accompanying software to generate, optimize, and execute quantum circuits. History IonQ was co-founded by Christopher Monroe and Jungsang Kim, professors at Duke University, in 2015, with the help of Harry Weller and Andrew Schoen, partners at venture firm New Enterprise Associates. The company is an offshoot of the co-founders’ 25 years of academic research in quantum information science. Monroe's quantum computing research began as a Staff Researcher at the National Institute of Standards and Technology (NIST) with Nobel-laureate physicist David Wineland where he led a team using trapped ions to produce the first controllable qubits and the first controllable quantum logic gate, culminating in a proposed architecture for a large-scale trapped ion computer. Kim and Monroe began collabora ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
D-Wave Systems
D-Wave Quantum Inc. is a quantum computing company with locations in Palo Alto, California and Burnaby, British Columbia. D-Wave claims to be the world's first company to sell computers that exploit quantum effects in their operation. D-Wave's early customers include Lockheed Martin, the University of Southern California, Google/NASA, and Los Alamos National Laboratory. D-Wave does not implement a generic, universal quantum computer; instead, their computers implement specialized quantum annealing. History D-Wave was founded by Haig Farris, Geordie Rose, Bob Wiens, and Alexandre Zagoskin in 1999. Farris taught a business course at the University of British Columbia (UBC), where Rose obtained his PhD, and Zagoskin was a postdoctoral fellow. The company name refers to their first qubit designs, which used d-wave superconductors. D-Wave operated from various locations in Vancouver, British Columbia, and laboratory spaces at UBC before moving to its current location in t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fast Company
''Fast Company'' is an American business magazine published monthly in print and online, focusing on technology, business, and design. It releases six print issues annually. History ''Fast Company'' was founded in November 1995 by Alan Webber and Bill Taylor, both former '' Harvard Business Review'' editors, and publisher Mortimer Zuckerman. Early competitors included '' Red Herring'', '' Business 2.0'' and '' The Industry Standard''. In 1997, ''Fast Company'' created an online social network called the "Company of Friends," which led to the formation of numerous meeting groups. At its peak, the Company of Friends comprised over 40,000 members across 120 cities, though membership declined to 8,000 by 2003. In 2000, Zuckerman sold ''Fast Company'' to Gruner + Jahr, majority-owned by media giant Bertelsmann, for $550 million. The sale coincided with the dot-com bubble burst, resulting in substantial losses and a drop in circulation. Webber and Taylor departed in 2002, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bernstein–Vazirani Algorithm
The Bernstein–Vazirani algorithm, which solves the Bernstein–Vazirani problem, is a quantum algorithm invented by Ethan Bernstein and Umesh Vazirani in 1997. It is a restricted version of the Deutsch–Jozsa algorithm where instead of distinguishing between two different classes of functions, it tries to learn a string encoded in a function. The Bernstein–Vazirani algorithm was designed to prove an oracle separation between Complexity class, complexity classes BQP and BPP (complexity), BPP. Problem statement Given an Oracle machine, oracle that implements a function f\colon\^n\rightarrow \ in which f(x) is promise problem, promised to be the dot product between x and a secret string s \in \^n Modular arithmetic, modulo 2, f(x) = x \cdot s = x_1s_1 \oplus x_2s_2 \oplus \cdots \oplus x_ns_n, find s. Algorithm Classically, the most efficient method to find the secret string is by evaluating the function n times with the input values x = 2^ for all i \in \: : \be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Microsoft Azure Quantum
Microsoft Azure Quantum is a public cloud-based quantum computing platform developed by Microsoft, that offers quantum hardware, software, and solutions for developers to build quantum applications. It supports variety of quantum hardware architectures from partners including Quantinuum, IonQ, and Atom Computing. To run applications on the cloud platform, Microsoft developed the Q# quantum programming language. Azure Quantum also includes a platform for scientific research, Azure Quantum Elements. It uses artificial intelligence, high-performance computing and quantum processors to run molecular simulations and calculations in computational chemistry and materials science. Azure Quantum was first announced at Microsoft Ignite in 2019. The platform was opened for public preview in 2021, and Azure Quantum Elements was launched in 2023. Hardware In addition to its hardware partners on the platform, Microsoft is developing a topological quantum computer with qubits that are inh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ancilla Bit
Ancilla bits are extra bits (units of information) used in computing paradigms that require reversible operations, such as classical reversible computing and quantum computing. Unlike classical computing where bits can be freely set to 0 or 1, reversible computation requires all operations on computer memory to be invertible. Ancilla bits, whose initial state is known, provide the necessary "workspace" for performing operations that would otherwise erase information. They play a crucial role in implementing complex logic gates and enabling universal computation within these reversible models. Ancilla bits can simplify complex operations. For example, an ancilla bit can be used to control a Toffoli gate, effectively turning it into a simpler gate like a controlled NOT or a NOT gate. Number of bits required For classical reversible computation, a constant number O(1) of ancilla bits is necessary and sufficient for universal computation. While additional ancilla bits aren't stri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
