Quantum Computers Simulate Particle 'String Breaking' in a Physics Breakthrough

image via New Scientist

June 13, 2025, 12:40 PM

• •Physicists used quantum computers to simulate particle 'string breaking', mimicking how linked subatomic particles release energy when force field strings break.
• •Two teams, one at QuEra Computing and another at Google Quantum AI Lab, employed different quantum simulation approaches: analogue and digital.
• •The experiments used atoms and superconducting loops to represent electric fields and manipulate strings, with results showing the strings could dissolve or break.
• •While these simulations have implications for materials physics, simulating high-energy interactions remains a future goal, and progress in quantum simulation is rapid.

Two teams of physicists have successfully used quantum computers to simulate the phenomenon of particle string breaking, a process where linked subatomic particles release energy when strings of force fields break. These simulations, conducted by researchers at QuEra Computing and the Google Quantum AI Lab, employed both analogue and digital quantum simulation methods using atoms and superconducting loops. The experiments demonstrated how the strings could be manipulated to break or dissolve, providing insights into the behavior of electric fields in 2D. Although fully simulating complex high-energy interactions remains a challenge, the rapid advancements in quantum simulation are promising.

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