Simulation of an infinite number of chaotic particles using a quantum computer

محاكاة عدد لا نهائي من الجسيمات الفوضوية باستخدام الكمبيوتر الكمومي Nature Physics (2022). DOI: 10.1038 / s41567-022-01689-7″ width=”800″ top=”508″/>

The quantum laptop used on this work. a, Part of a polar segmented floor entice H1-1 Quantinuum, exhibiting 5 gate areas in purple (750 μm-wide ionic crystal bands and laser beam waists should not plotted extensively). The pc operates equally to what’s described elsewhere (apart from the parallel gate course of throughout the three central gate areas (G2–G4)), with 171Yb+ qubit ions (inexperienced) and 138Ba+ ion coolers (white) saved in diodes or crystals. Quad ions. Arbitrary coupling of qubits is achieved by transporting ions alongside an empty linear radio frequency (dashed line) 70 μm above the floor. b, sympathetic ground-state cooling adopted by a two-qubit Mølmer–Sørenson gate, is carried out in parallel by way of G2–G4 over Yb–Ba–Ba–Yb crystal formations. Every crystal is ~8 µm in size, and the cooling and gate lasers (wavelengths, 493 and 368 nm, respectively) have a nominal beam waist of 17.5 µm. c, Typical (ie, consultant over the length of knowledge acquisition) common accuracy of single-qubit (SQ) gates (SQ) and two-qubit (TQ) gates and the preparation and measurement of frequent state (SPAM) carried out by random calibration. attributed to him: Nature Physics (2022). DOI: 10.1038 / s41567-022-01689-7

A staff of Quantinuum researchers, working with a colleague on the College of Texas, Austin, has developed a approach to simulate an infinite variety of chaotic particles utilizing a quantum laptop working with a finite variety of qubits. Of their paper printed within the journal Nature PhysicsThe group describes their type.

To study extra about how molecules in supplies behave, researchers have give you methods to simulate their habits on a pc. These makes an attempt labored nicely with easy operations however encountered issues when simulating complexity, reminiscent of an infinitely lengthy line of particles interacting over a sure time period. Makes an attempt slowed down on standard supercomputers, and researchers theorized {that a} quantum laptop might do the job nicely. On this new effort, the researchers discovered that that is certainly the case.

The researchers declare that the important thing to working an algorithm able to dealing with such an issue is because of a design that not solely carried out the operations wanted to run the simulation but additionally added code that might permit such simulations to run with only a few qubits. As soon as that they had an algorithm they thought would work, the staff turned to {hardware}. They selected a machine that used qubits represented by ytterbium atoms – and adjusted the variety of bits turned on from three to 11.

The researchers discovered that they had been in a position to run their algorithm with such a small variety of qubits as a result of they inbuilt a system that recycles qubits – the place one qubit is used, these already used are reset to their authentic state after which used once more – a way referred to as dynamics holographic. This course of was repeated whereas the simulation was working. To check the system, the researchers ran simulations of a course of that had already been verified utilizing different methods. The staff plans to check the system with simulations that can’t be demonstrated utilizing a traditional supercomputer.


Researchers have efficiently simulated a 64-kilobit circuit


extra data:
Eli Chertkov et al, Three-dimensional dynamics simulation utilizing a confined quantum laptop, Nature Physics (2022). DOI: 10.1038 / s41567-022-01689-7

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