Here are the top bestHow many quantum computers existvoted by readers and compiled and edited by our team, let’s find out

## 1 Quantum Computing: Current Progress and Future Directions

**Author:**er.educause.edu**Published:**02/05/2022**Review:**4.88 (627 vote)**Summary:**· What is quantum computing, how is it being used, and what are the … capacity to grasp chemical characteristics did not exist before,**Detail:**https://er.educause.edu/articles/2022/7/quantum-computing-current-progress-and-future-directions

## 2 Quantum Computing: What It Is, Why We Want It, and How … – NCBI

**Author:**ncbi.nlm.nih.gov**Published:**04/22/2022**Review:**4.79 (274 vote)**Summary:**Building quantum computers is incredibly difficult. Many candidate qubit systems exist on the scale of single atoms, and the physicists, engineers,**Detail:**https://www.ncbi.nlm.nih.gov/books/NBK538701/

## 3 Quantum Computers

**Author:**umsl.edu**Published:**01/01/2022**Review:**4.39 (435 vote)**Summary:**Quantum computers arent limited to two states; they encode information as quantum bits, or qubits, which can exist in superposition. – Qubits represent atoms,**Detail:**http://www.umsl.edu/~siegelj/information_theory/projects/Bajramovic/www.umsl.edu/_abdcf/Cs4890/link3.html

## 4 15 Things Everyone Should Know About Quantum Computing

**Author:**bernardmarr.com**Published:**07/31/2022**Review:**4.25 (516 vote)**Summary:**Google announced it has a quantum computer that is 100 million times faster than any classical computer in its lab. Every day, we produce 2.5 exabytes of data**Detail:**https://bernardmarr.com/15-things-everyone-should-know-about-quantum-computing/

## 5 Fujitsu’s quantum computers could beat rival machines to the market

**Author:**popsci.com**Published:**11/16/2021**Review:**4 (491 vote)**Summary:**· The machine, from Fujitsu and Riken, would reportedly have 64 qubits. … The idea of a quantum computer was first proposed in the 1980s: A**Detail:**https://www.popsci.com/technology/fujitsu-riken-quantum-computer/

## 6 How Close Are We–Really–to Building a Quantum Computer?

**Author:**scientificamerican.com**Published:**12/21/2021**Review:**3.98 (400 vote)**Summary:**· There are probably no less than six or seven different types of qubits, and probably three or four of them are being actively considered for use**Detail:**https://www.scientificamerican.com/article/how-close-are-we-really-to-building-a-quantum-computer/

## 7 First quantum computer to pack 100 qubits enters crowded race

**Author:**nature.com**Published:**03/07/2022**Review:**3.79 (599 vote)**Summary:**· IBM’s newest quantum-computing chip, revealed on 15 November, established a milestone of sorts: it packs in 127 quantum bits (qubits), making it**Detail:**https://www.nature.com/articles/d41586-021-03476-5

## 8 Are Quantum Computers Real? – Pure Storage Blogs

**Author:**blog.purestorage.com**Published:**04/28/2022**Review:**3.56 (597 vote)**Summary:**· Functional quantum computers exist and are even capable of doing some work, … Many research centers have performed quantum computing**Detail:**https://blog.purestorage.com/purely-informational/are-quantum-computers-real/

## 9 The World’s Highest Performing Quantum Computer is Here

**Author:**honeywell.com**Published:**07/31/2022**Review:**3.31 (272 vote)**Summary:**With a quantum volume of 64, the Honeywell quantum computer is twice as powerful as the next alternative in the industry. That means we are closer to industries**Detail:**https://www.honeywell.com/us/en/news/2020/06/the-worlds-highest-performing-quantum-computer-is-here

## 10 IBM’s first quantum computer outside of the US has just gone live

**Author:**zdnet.com**Published:**07/16/2022**Review:**3.19 (407 vote)**Summary:**· IBM’s offer in quantum computing has some significant strengths. Since the release of its first cloud-based quantum processor, the company now**Detail:**https://www.zdnet.com/article/ibms-first-quantum-computer-outside-of-the-us-has-just-gone-live/

## 11 Why Is Quantum Computing So Hard to Explain | Quanta Magazine

**Author:**quantamagazine.org**Published:**12/31/2021**Review:**2.85 (155 vote)**Summary:**· A quantum computer that’s big and reliable enough to outperform classical computers at practical applications like breaking cryptographic codes**Detail:**https://www.quantamagazine.org/why-is-quantum-computing-so-hard-to-explain-20210608/

## 12 IBM creates largest ever superconducting quantum computer

**Author:**newscientist.com**Published:**06/18/2022**Review:**2.69 (186 vote)**Summary:**· IBM has made a 127-qubit quantum computer. This is over double the size of comparable machines made by Google and the University of Science**Detail:**https://www.newscientist.com/article/2297583-ibm-creates-largest-ever-superconducting-quantum-computer/

## 13 What is Quantum Computing? – SEEQC

**Author:**seeqc.com**Published:**11/05/2021**Review:**2.6 (126 vote)**Summary:**Similarly, quantum computers use “quantum bits” or “qubits” to store and manipulate information. Not so similarly, qubits can exist in many states**Detail:**https://seeqc.com/quantum-computing

## 14 Is quantum computing here at last? – Cybernews

**Author:**cybernews.com**Published:**09/24/2022**Review:**2.5 (50 vote)**Summary:**· So, how does quantum computing work? … With a standard computer, information is stored as bits that have only two possible states: zero and one**Detail:**https://cybernews.com/editorial/is-quantum-computing-here-at-last/

## 15 IBM Quantum Computing | Systems Technology

**Author:**ibm.com**Published:**05/30/2022**Review:**2.51 (196 vote)**Summary:**The iconic IBM Quantum System One This is the apex of the IBM Quantum computing systems. Created at the frontiers of multiple emerging technologies,**Detail:**https://www.ibm.com/quantum/systems

## 16 Quantum Computing Companies: Ultimate List for 2022

**Author:**thequantuminsider.com**Published:**06/29/2022**Review:**2.42 (115 vote)**Summary:**· Leveraging The Quantum Insiders proprietary Quantum Intelligence Platform, we have included close to one hundred companies. As our Quantum**Detail:**https://thequantuminsider.com/2022/09/05/quantum-computing-companies-ultimate-list-for-2022/

## 17 Quantum Computing in 2021 – Strategic Finance

**Author:**sfmagazine.com**Published:**09/28/2022**Review:**2.33 (179 vote)**Summary:**· IBM has an ambitious timeline for growth in its quantum line of computers beginning with a 127-qubit computer in 2021, a 433-qubit machine in**Detail:**https://sfmagazine.com/technotes/december-2020-quantum-computing-in-2021/

## 18 Do quantum computers exist? – Plus magazine!

**Author:**plus.maths.org**Published:**06/29/2022**Review:**2.22 (151 vote)**Summary:**· The simple answer to this question is no — within present quantum technology we are unable to build one with sufficient power to replace**Detail:**https://plus.maths.org/content/do-quantum-computers-exist