Even quantum computers make mistakes. Their computing ability is extraordinary, exceeding that of classical computers by far. This is because circuits in quantum computers are based on qubits that can represent not only zeroes ...
Quantum Physics
Sep 9, 2020
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186
Quantum bits, or qubits, can hold quantum information much longer now thanks to efforts by an international research team. The researchers have increased the retention time, or coherence time, to 10 milliseconds—10,000 ...
Quantum Physics
Sep 4, 2020
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4574
The practicality of quantum computing hangs on the integrity of the quantum bit, or qubit.
Quantum Physics
Aug 26, 2020
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For the first time, researchers have designed a fully connected 32-qubit trapped-ion quantum computer register operating at cryogenic temperatures. The new system represents an important step toward developing practical quantum ...
Optics & Photonics
Aug 25, 2020
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2112
Quantum physicists at the University of Sussex have created an algorithm that speeds up the rate of calculations in the early quantum computers which are currently being developed. They have created a new way to route the ...
Quantum Physics
Aug 24, 2020
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48
Regardless of what makes up the innards of a quantum computer, its speedy calculations all boil down to sequences of simple instructions applied to qubits—the basic units of information inside a quantum computer.
Quantum Physics
Aug 21, 2020
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427
Yale physicists have developed an error-correcting cat—a new device that combines the Schrödinger's cat concept of superposition (a physical system existing in two states at once) with the ability to fix some of the trickiest ...
Quantum Physics
Aug 12, 2020
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3442
MIT researchers have introduced a quantum computing architecture that can perform low-error quantum computations while also rapidly sharing quantum information between processors. The work represents a key advance toward ...
Quantum Physics
Jul 29, 2020
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A group of international scientists have substantially lengthened the duration of time that a spin-orbit qubit in silicon can retain quantum information for, opening up a new pathway to make silicon quantum computers more ...
Quantum Physics
Jul 20, 2020
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723
MIT researchers have developed a process to manufacture and integrate "artificial atoms," created by atomic-scale defects in microscopically thin slices of diamond, with photonic circuitry, producing the largest quantum chip ...
Quantum Physics
Jul 8, 2020
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1505
