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19 01, 2023

The dawning of the quantum age

By |2023-01-19T14:12:40-07:00January 19th, 2023|Categories: Quantum Computing, Uncategorized|Tags: , , , |

It is a quarter of a century since the first quantum bits, or qubits, were hooked together to make a rudimentary quantum computer. With their ability to represent both the ones and zeros in traditional computers at the same time, qubits are the most basic components of systems that could far surpass today’s computers [...]

19 01, 2023

Programmable frequency-bin quantum states in a nano-engineered silicon device

By |2023-01-19T14:03:36-07:00January 19th, 2023|Categories: Quantum Computing, Silica Particles, Uncategorized|Tags: , , , , , , , , , , |

Abstract Photonic qubits should be controllable on-chip and noise-tolerant when transmitted over optical networks for practical applications. Furthermore, qubit sources should be programmable and have high brightness to be useful for quantum algorithms and grant resilience to losses. However, widespread encoding schemes only combine at most two of these properties. Here, we overcome this [...]

19 01, 2023

Scientists See Quantum Interference between Different Kinds of Particles for First Time

By |2023-01-19T13:43:49-07:00January 19th, 2023|Categories: Quantum Computing|Tags: , , , , , , , , |

For the first time, scientists have observed quantum interference—a wavelike interaction between particles related to the weird quantum phenomenon of entanglement—occurring between two different kinds of particles. The discovery could help physicists understand what goes on inside an atomic nucleus.   Particles act as both particles and waves. And interference is the ability of one [...]

19 01, 2023

Scientists make a quantum harmonic oscillator at room temperature

By |2023-01-19T13:28:51-07:00January 19th, 2023|Categories: Optics & Photonics, Quantum Computing, Uncategorized|Tags: , , , , , , , , , |

A quantum harmonic oscillator—a structure that can control the location and energy of quantum particles that could, in the future, be used to develop new technologies including OLEDs and miniature lasers—has been made at room temperature by researchers led by the University of St Andrews.   The research, conducted in collaboration with scientists at Nanyang [...]

19 01, 2023

Revived photon entanglement could enhance quantum communication and imaging    – Physics World

By |2023-01-19T13:24:09-07:00January 19th, 2023|Categories: Optics & Photonics, Quantum Computing|Tags: , , , , , , , , , , , , , |

Researchers in India have shown that photon entanglement in a certain continuous-variable basis revives itself as the photons propagate away from their source. The discovery could prove useful for securely transmitting quantum information over long distances and for quantum imaging in turbulent media. Quantum entanglement between photons is being explored extensively by physicists, often [...]

19 01, 2023

Quantum superposition begs us to ask, “What is real?”

By |2023-01-19T10:41:10-07:00January 19th, 2023|Categories: Quantum Computing|Tags: , , , , |

The world of the very, very small is a wonderland of strangeness. Molecules, atoms, and their constituent particles did not readily reveal their secrets to the scientists that wrestled with the physics of atoms in the early 20th century. Drama, frustration, anger, puzzlement, and nervous breakdowns abounded, and it is hard for us now, a [...]

19 01, 2023

New techniques for accurate measurements of tiny quantum objects

By |2023-01-19T10:33:06-07:00January 19th, 2023|Categories: Quantum Computing, Uncategorized|Tags: , , , , , , |

New research led by a team of scientists at The Australian National University (ANU) has outlined a way to achieve more accurate measurements of microscopic objects using quantum computers—a step that could prove useful in a huge range of next-generation technologies, including biomedical sensing.   Examining the various individual properties of a large everyday object [...]

19 01, 2023

Quantum computers threaten our whole cybersecurity infrastructure: Here’s how scientists can bulletproof it

By |2023-01-19T10:24:39-07:00January 19th, 2023|Categories: Quantum Computing|Tags: , , , , , , , , , , |

Thirteen, 53, and 433. That's the size of quantum computers in terms of quantum bits, or qubits, which has significantly grown in the last years due to important public and private investments and initiatives. It is not only a mere question of quantity: the quality of the prepared qubits is as important as their number for a quantum computer to beat [...]

19 01, 2023

A new qubit approach for more stable states for quantum computers

By |2023-01-19T10:13:15-07:00January 19th, 2023|Categories: Quantum Computing|Tags: , , , , , , |

Quantum computers can more rapidly process large amounts of data because they carry out many computation steps in parallel. The information carrier of the quantum computer is a qubit. Qubits do not only possess the information of "0" and "1," but also values in between. However, the difficulty consists in producing qubits that are small [...]

18 01, 2023

New Algorithm Closes Quantum Supremacy Window | Quanta Magazine

By |2023-01-18T15:16:26-07:00January 18th, 2023|Categories: Quantum Computing|Tags: , , , , , , , , |

In what specific cases do quantum computers surpass their classical counterparts? That’s a hard question to answer, in part because today’s quantum computers are finicky things, plagued with errors that can pile up and spoil their calculations. By one measure, of course, they’ve already done it. In 2019, physicists at Google announced that they used a 53-qubit [...]