Google's Bristlecone quantum computer Google announced a 72-qubit universal quantum computer that promises the same low error rates the company saw in its first 9-qubit quantum computer. Google believes that this quantum computer, called Bristlecone, will be able to bring us to an age of quantum supremacy. Ready For Quantum Supremacy Google has teased before that it would build a 49-qubit quantum computer to achieve “quantum supremacy.” This achievement would show that quantum computers can perform some well-defined science problems faster than the fastest supercomputers in the world can. In a recent announcement, Google said: If a quantum processor can be operated with low enough error, it would be able to outperform a classical supercomputer on a well-defined computer science problem, an achievement known as quantum supremacy. These random circuits must be large in both number of qubits as well as computational length (depth). Although no one has achieved this goal … [Read more...] about Google Unveils 72-Qubit Quantum Computer With Low Error Rates

# Qubits quantum computing

## IBM’s new program includes a 50-qubit quantum computer

A new quantum computing program called Q at IBM promises more than 50 qubits, which should push conventional computers one step closer to the trash heap. IBM Q will deliver paid quantum computing consulting and services to users. It's much like IBM's Watson, which uses conventional computers, but Q uses quantum computers. The 50-qubit quantum computer will be 10 times larger than a 5-qubit system already housed by IBM. And the new system will be able to do things that conventional computers can't do: It will accelerate drug discovery and make scientific discoveries, IBM said. Quantum computers are radically different than conventional PCs and could ultimately replace today's PCs and servers. They offer a way to advance computing as today's classic computer reach their limit, and as making smaller chips becomes challenging. IBM is building faster quantum computers to show such systems aren't theoretical dreams. IBM's ultimate goal is to build a universal quantum computer with … [Read more...] about IBM’s new program includes a 50-qubit quantum computer

## With quantum computers here, developers seek uses

After decades of research, the first quantum computers are now up and running. The question is: What do we do with them? IBM and D-Wave are trying to cash in on their expensive quantum computers by commercializing services. Both agree that quantum computers are different than PCs and can't be used to run every application. Instead, quantum systems will do things not possible on today's computers, such as discovering new drugs and building molecular structures. Today's computers are good at finding answers by analyzing information within data sets, but quantum computers can get a wider range of answers by calculating and assuming new data sets. Quantum computers can be significantly faster and could eventually replace today's PCs and servers. Quantum computing is one way to advance computing as today's systems reach their physical and structural limits. Progress has been slow, but researchers are discovering uses for quantum computers like D-Wave's 2000Q, which has 2,000 … [Read more...] about With quantum computers here, developers seek uses

## IBM makes leap in quantum computing power

IBM has some new options for businesses wanting to experiment with quantum computing.Quantum computers, when they become commercially available, are expected to vastly outperform conventional computers in a number of domains, including machine learning, cryptography and the optimization of business problems in the fields of logistics and risk analysis.Where conventional computers deal in ones and zeros (bits) the processors in quantum computers use qubits, which can simultaneously hold the values one and zero. This -- to grossly oversimplify -- allows a quantum computer with a 5-qubit processor to perform a calculation for 32 different input values at the same time.On Wednesday, IBM put a 16-qubit quantum computer online for IBM Cloud platform customers to experiment with, a big leap from the five-qubit machine it had previously made available. The company said that machine has already been used to conduct 300,000 quantum computing experiments by its cloud service users. But … [Read more...] about IBM makes leap in quantum computing power

## Why we should be afraid of quantum computing

Elon Musk, Stephen Hawking, and others have been warning about the harm runaway artificial intelligence could do to humanity in the future. But another technology may pose a more imminent threat: quantum computing. Quantum computers are straight out of science fiction. Take the “traveling salesman problem,” where a salesperson has to visit a specific set of cities, each only once, and return to the first city by the most efficient route possible. As the number of cities increases, the problem becomes exponentially complex. It would take a laptop computer 1,000 years to compute the most efficient route between 22 cities, for example. A quantum computer could do this within minutes, possibly seconds. Unlike classic computers, in which information is represented in 0s and 1s, quantum computers rely on particles called quantum bits, or qubits. These can hold a value of 0 or 1 or both values at the same time — a superposition denoted as “0+1.” They solve … [Read more...] about Why we should be afraid of quantum computing