Novel hybrid scheme speeds the way to simulating nuclear reactions on quantum computers

novel hybrid scheme speeds the way to simulating nuclear reactions on quantum computers

A depiction of the collision of two neutrons simulated on a quantum chip at the Advanced Quantum Testbed. Credit: S. Quaglioni (adapted from the Lawrence Berkely National Laboratory Advanced Quantum Testbed web site).

The nuclear reactions that power the stars and forge the elements emerge from the interactions of the quantum mechanical particles, protons and neutrons. Explaining these processes is one of the most challenging unsolved problems in computational physics.

As the mass of the colliding nuclei grows, the resources required to model them outpace even the most powerful conventional computers. Quantum computers could perform the necessary computations. However, they currently fall short of the required number of reliable and long-lived quantum bits.

Research, published in Physical Review A, combined conventional computers and quantum computers to significantly accelerate the prospects of solving this problem.

The researchers successfully used the hybrid computing scheme to simulate the scattering of two neutrons. This opens a path to computing nuclear reaction rates that are difficult or impossible to measure in a laboratory. These include reaction rates that play a role in astrophysics and national security.

The hybrid scheme will also aid in simulating the properties of other quantum mechanical systems. For example, it could help researchers study the scattering of electrons with quantized atomic vibrations known as phonons, a process that underlies superconductivity.

A team of scientists at the University of Washington, the University of Trento, the Advanced Quantum Testbed (AQT), and Lawrence Livermore National Laboratory proposed a hybrid algorithm for the simulation of the (real time) dynamics of quantum mechanical systems of particles.

In this hybrid approach, the time evolution of the particles' spatial coordinates is carried out on a classical processor, while the evolution of their spin variables is carried out on quantum hardware. The researchers demonstrated this hybrid scheme by simulating the scattering of two neutrons at the AQT.

The demonstration validated the principle of the proposed co-processing scheme after implementing error mitigation strategies to improve the accuracy of the algorithm and adopting theoretical and experimental methods to elucidate the loss of quantum coherence.

Even with the simplicity of the demonstration system this project studied, the results suggest that a generalization of the present hybrid scheme may provide a promising pathway for simulating quantum scattering experiments with a quantum computer.

Leveraging future quantum platforms with longer coherence times and higher quantum gate fidelities, the hybrid algorithm would enable the robust computation of complex nuclear reactions important for astrophysics and technological applications of nuclear science.

More information: F. Turro et al, Demonstration of a quantum-classical coprocessing protocol for simulating nuclear reactions, Physical Review A (2023). DOI: 10.1103/PhysRevA.108.032417

Provided by US Department of Energy

This story was originally published on Phys.org. Subscribe to our newsletter for the latest sci-tech news updates.

OTHER NEWS

10 minutes ago

Here are Friday's biggest analyst calls: Nvidia, Tesla, Hasbro, Sunrun, Amazon, Costco, Spotify, Pinterest, Apple & more

10 minutes ago

Jack Whitehall jokes it is 'coincidental timing' that his partner Roxy Horner discovered she had diabetes after fainting during a Harry Styles performance as he raises awareness for the condition

10 minutes ago

A Current Affair's Tracy Grimshaw shares shock confession that she's a 'binge drinker' as she vows to overhaul her lifestyle

15 minutes ago

Can you opt out of letting Meta’s AI chatbot use your data? It’s not so simple

15 minutes ago

‘Memoir of a Snail’ Review: Australian Claymation Master Adam Elliot Reflects On Love, Grief And Human Weakness – Annecy

16 minutes ago

Michael Mosley revealed obsession with the good life and struggle to follow own advice in final BBC interview

16 minutes ago

Gym sign limiting entry to ‘elegant women’ sparks row in South Korea

16 minutes ago

Peaky Blinders star Paul Anderson says he is ‘struggling today’ after health concerns

16 minutes ago

SCOTUS rejects abortion pill challenge; readers' dads give their best advice

16 minutes ago

Revealed: This Is What Amit Shah Told Tamilisai Soundararajan During Andhra CM Oath Ceremony

16 minutes ago

The search for a new home continues in The Ark season 2 trailer

16 minutes ago

This Morning viewers all say the same thing as Alison Hammond and Josie Gibson take over hosting duties

16 minutes ago

BBC Breakfast fans 'switch channels' as Nigel Farage interview sparks fury

16 minutes ago

Today's best photos: From Hajj in Makkah to protests in Manila

16 minutes ago

Utah’s NHL team officially now has a name and jerseys ahead of 2024-25 debut

16 minutes ago

KIB to be closed during Eid Al-Adha holiday, providing services through digital platforms

16 minutes ago

Love Island viewers slam 'bully' behaviour as they worry for Harriett Blackmore

16 minutes ago

Mdletshe dumps NFP over pact with ANC and DA

16 minutes ago

Laura Woods joins the Tartan Army party! ITV presenter touches down at the Euros to lead coverage of tonight's first game in Munich... but not before joining in with Scotland fans' cheers!

16 minutes ago

Video: Taylor Swift fans left fuming after being sold £660 VIP tickets with 'restricted view' at her Liverpool pop concert at Anfield stadium

16 minutes ago

Goading England fans say they are supporting Germany over Scotland tonight ahead of Euro 2024 opener

16 minutes ago

It's coming bone! England players are greeted by portraits of their DOGS mocked up as royalty in their bedrooms at Euro 2024

19 minutes ago

Swedish officials say weak replacement parts caused a fatal roller coaster derailment last year

22 minutes ago

Grieving woman compares mother's interment to a Monty Pyton sketch after staff ask if it is okay to just sprinkle the ashes so they don't have to dig a hole

22 minutes ago

LISTEN to It's All Kicking Off! Why Euro 2024 could give us an 'old school' tournament once again

22 minutes ago

Kyle Walker is appointed England's vice-captain for Euro 2024, replacing axed Jordan Henderson

22 minutes ago

EUROs got SWAGS! Scotland's glam wives and girlfriends jet off to Germany to support their partners ahead of Euro 2024 opener tonight

22 minutes ago

Spacey's reprieve! Oscar-winner given a chance to save his beloved Baltimore home after foreclosure auction is mysteriously canceled at the last minute

22 minutes ago

Kellie Shirley lands big soap role 12 years after EastEnders exit

23 minutes ago

Employees, media shocked by reported imminent closure of Media24’s key print publications

23 minutes ago

Five Below has had a rough year so far. Here's why

23 minutes ago

Stocks making the biggest moves premarket: Adobe, Hasbro, GameStop and more

23 minutes ago

Aldi reveals full list of more than 30 stores set for major upgrades this summer

23 minutes ago

Tweens going all out for their skin, but are the products they using safe?

23 minutes ago

Kyra Sedgwick is 'in love' with directing

23 minutes ago

'It's such a great world to play in': Kelsey Mann has plans for a third Inside Out movie

23 minutes ago

2024 Suzuki Swift Hybrid review

23 minutes ago

2024 Suzuki Swift Hybrid price and specs

23 minutes ago

Assassin's Creed slammed for 'forced diversity' with African Samurai

23 minutes ago

French tech firms warn immigration curbs could threaten AI ambitions