Because quantum computers can access superposition states, they can perform partial versions of standard logic gates. In a hypothetical perfect quantum computer with no noise, this job is not difficult. This is a problem we are currently facing with quantum computers. Like more traditional versions of Battleships, mine is played on a grid where each point represents a place where a ship might be hiding (figure 1). Or with the 58? These are things you can't explain with regular logic. As more qubits are added, the system becomes increasingly complex. "Quantum systems are really quite delicate.". Quantum computing is computing at its most esoteric. We need programs that enable users to experience an otherwise inscrutable area of physics directly; to learn how it works; and to figure out how it can be harnessed. Within Quantum Awesomeness, the connectivity graph becomes the board on which the game is played. In 2016, IBM added a small quantum computer to the cloud. If we run this operation many times, measuring the qubit each time to extract an output, we’ll find that 0 and 1 come out with equal probability. There is, however, a silver lining to this problem, which is that playing Quantum Awesomeness could give us a feel for how noisy a device is. Physics World represents a key part of IOP Publishing's mission to communicate world-class research and innovation to the widest possible audience. Now, with this service available to the larger community, perhaps more progress is on the way. Qubits inevitably interact with their environment, and the operations we perform are never quite perfect. But that might be changing. How it’s using quantum computing: “The real excitement about quantum is that the universe fundamentally works in a quantum way, so you will be able to understand nature better,” Google’s Pichai told MIT Technology Review in the wake of his company’s recent announcement. Whether it be games, or scientific studies that lead to published papers, a lot of the source code is online and well documented – ready for newcomers to learn from, or to adapt and use themselves. Instead of just a 1 or a 0, a "qubit" could store both at the same time, thanks to what's called the superposition principle. Results from one run are shown in figure 2b (bottom two rows). And, he adds, IBM has done it right. But if we actually measure the state of one of these superposition qubits, we force it to randomly choose between the two binary options. Then the second would take this superposition and continue the journey. The two qubits in each pair have numbers that are exactly equal, making it easy to pick them out. It is the simplest of the logic gates that underpin all digital computing. But now, in sharing this machine with the world at large, the company hopes to accelerate its progress, aiming to extend its power to 50 or possibly 100 qubits. We can, for example, make them do half of a NOT. Any complex superposition states will have long since decohered away. Qubits can, famously, exist in states other than just 0 or 1. And suppose that you have booked 2 taxis for this purpose, and you want to figure out who gets into which … In fact, you could do better. We’ll give the game a name that reflects this: Quantum Awesomeness. But that kind of ultra-powerful machine doesn't yet exist. At the time I created it, this meant the one and only device that was available to use: a five-qubit prototype quantum processor made by IBM. A simple example for understanding how quantum computers work. And we need programs that enable users to experience an otherwise inscrutable area of physics directly; to learn how it works; and to figure out how it can be harnessed. Please enter the e-mail address you used to register to reset your password, Thank you for registering with Physics World