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Category: quantum physics – Page 358

‪#‎excerpt‬ — Explore

In the future we can envision FASQ* machines, Fault-Tolerant Application-Scale Quantum computers that can run a wide variety of useful applications, but that is still a rather distant goal. What term captures the path along the road from NISQ to FASQ? Various terms retaining the ISQ format of NISQ have been proposed[here, here, here], but I would prefer to leave ISQ behind as we move forward, so I’ll speak instead of a megaquop or gigaquop machine and so on meaning one capable of executing a million or a billion quantum operations, but with the understanding that mega means not precisely a million but somewhere in the vicinity of a million.

Naively, a megaquop machine would have an error rate per logical gate of order 10^{-6}, which we don’t expect to achieve anytime soon without using error correction and fault-tolerant operation. Or maybe the logical error rate could be somewhat larger, as we expect to be able to boost the simulable circuit volume using various error mitigation techniques in the megaquop era just as we do in the NISQ era. Importantly, the megaquop machine would be capable of achieving some tasks beyond the reach of classical, NISQ, or analog quantum devices, for example by executing circuits with of order 100 logical qubits and circuit depth of order 10,000.

- John Preskill.

[#excerpt](https://www.facebook.com/hashtag/excerpt?__eep__=6&__cft__[0]=AZXa9ueYXttmfVEwzQ4GVekAZVQop7Zhgkor5jA_vB_hwHN4tj73lg-rThDgKBiPSpLhF7zjAlitfcoy74S8m0I2_VTeMl5LfR2Iy9fAsd5Y9hsrZvFvD0zaYNMgiSqjej22oVy1MJZdG12EXGSwzpMBCIeIJ52AotdeXkKOIklHyEUqwFUxAFf8GQfiarLm4odTgsHClmDYc7kUFL3A6AZ-&__tn__=*NK-R) transcript of his talk at the [#Q2B](https://www.facebook.com/hashtag/q2b?__eep__=6&__cft__[0]=AZXa9ueYXttmfVEwzQ4GVekAZVQop7Zhgkor5jA_vB_hwHN4tj73lg-rThDgKBiPSpLhF7zjAlitfcoy74S8m0I2_VTeMl5LfR2Iy9fAsd5Y9hsrZvFvD0zaYNMgiSqjej22oVy1MJZdG12EXGSwzpMBCIeIJ52AotdeXkKOIklHyEUqwFUxAFf8GQfiarLm4odTgsHClmDYc7kUFL3A6AZ-&__tn__=*NK-R) Conference.

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Unlocking the Full Power of Quantum Computing With a Revolutionary Superconducting Processor

A new quantum processor design features a modular router that allows enhanced qubit connectivity, breaking away from traditional 2D grid constraints.

This approach aims for scalable, fault-tolerant quantum computing that could transform industries by solving problems beyond the reach of classical computers.

Quantum Processor Innovation

Infrared quantum ghost imaging illuminates—but doesn’t disturb—living plants

A study published in the journal Optica demonstrates live plant imaging of several representative plant samples, including the biofuel crop sorghum. By employing a novel detector, researchers obtained clear images of living sorghum plants with a light far dimmer than starlight. This advance enables imaging of delicate, light-sensitive samples, such as biofuel crops, without disturbing or damaging the plants.

A method called quantum ghost imaging (QGI) allows scientists to capture images at extremely low light levels. QGI also enables the use of one low intensity color, best matched to the sample and a different color at higher intensity, sufficient to form the image of the sample. This approach improves imaging in regions of light where traditional cameras struggle.

By using label-free infrared imaging, researchers can gather critical information about important plant processes, such as and photosynthesis, even in low-light conditions. This is particularly beneficial for studying , where researchers want to optimize plant growth and health to maximize yield and sustainability.

Scientists control quantum states in new energy range

An international team of scientists led by Dr. Lukas Bruder, junior research group leader at the Institute of Physics, University of Freiburg, has succeeded in producing and directly controlling hybrid electron-photon quantum states in helium atoms.

To this end, they generated specially prepared, highly intense extreme ultraviolet using the FERMI free electron laser in Trieste, Italy. The researchers achieved control of the hybrid quantum states using a new laser pulse-shaping technique. Their results have been published in the journal Nature.

Quantum Dot Breakthrough Makes Infrared Lasers Affordable and Scalable

Researchers have developed a new laser technology using large colloidal quantum dots of lead sulfide to emit coherent light in the extended short-wave infrared range.

This innovation promises cheaper, scalable laser solutions compatible with silicon CMOS platforms, covering a broader wavelength range without altering chemical compositions, and eliminating the need for costly femtosecond laser amplifiers.

Novel Laser Technologies

MIT Unveils Exotic Matter Breakthrough Set to Revolutionize Quantum Computing

MIT physicists propose a method to create fractionalized electrons known as non-Abelian anyons in two-dimensional materials, potentially advancing quantum computing by enabling more reliable quantum bits without using magnetic fields.

Their research highlights the potential of molybdenum ditelluride in forming these anyons, promising significant advancements in robust quantum computation.

MIT physicists predict exotic matter for quantum computing.

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