---
title: "Simulating Particle-Antiparticle Pair Creation through Strong Electric Field"
url: https://newscentral.site/simulating-particle-antiparticle-pair-creation-through-strong/
language: en
publisher: "News Central Site"
section: "Science"
published: 2026-10-31T17:00:01.000Z
updated: 2026-10-31T19:41:19.685Z
id: fa37c64c-9e73-4468-8c39-7ec91eff2043
source: "Phys.org https://phys.org/news/2026-10-ultracold-atoms-simulate-hard-antimatter.html"
attribution: "Link to https://newscentral.site/simulating-particle-antiparticle-pair-creation-through-strong/ and name News Central Site when you quote or summarize this story."
---

# Simulating Particle-Antiparticle Pair Creation through Strong Electric Field

Researchers have made significant progress in simulating the creation of particle-antiparticle pairs through a strong electric field, a phenomenon known as the Schwinger effect. This process is difficult to observe experimentally due to its suppression at laboratory-scale electric fields.

The creation of these pairs involves converting some of the electric field's energy into particles and their antimatter counterparts, which have the same mass but opposite charges for charged particles. According to quantum electrodynamics, a sufficiently strong electric field can initiate this process.

In an effort to study this rare phenomenon, scientists at the University of Science and Technology of China and other institutions have designed an experiment using ultracold rubidium atoms trapped in an optical lattice. This setup represents both particles and electric fields through the arrangement and motion of these atoms.

The researchers' approach uses a laser light-based pattern to trap the atoms, allowing them to mimic the conditions necessary for the Schwinger effect to occur. By simulating this process, scientists hope to gain a deeper understanding of particle production from the vacuum.

This innovative experiment is outlined in a paper published in Physical Review Letters and has the potential to shed new light on the fundamental physics underlying matter-antimatter pair creation.

The team's experiment is based on a theoretical prediction known as the Schwinger effect, which suggests that a strong electric field can create electron-positron pairs from nothing.

To simulate this phenomenon in a laboratory setting, the researchers used laser light to trap ultracold rubidium atoms in a one-dimensional chain. The arrangement of these atoms was carefully designed, with every second trap containing two atoms and the traps in between empty.

This setup creates a "false vacuum state that can release energy by producing particle-antiparticle pairs. By changing the settings, the team allowed the atoms to hop between neighboring sites, mimicking the process of pair creation.

The researchers used a quantum gas microscope to image the atoms at different times, allowing them to observe the creation of particle-antiparticle pairs in real-time.

As part of their investigation, the team varied the mass of the simulated particles and the background electric field to see how these changes affected the production of particle-antiparticle pairs.

The research team made another crucial connection in their investigation by linking the production of particle-antiparticle pairs directly to a specific amplitude known as the vacuum persistence amplitude". This amplitude is significant because its squared magnitude gives the probability that the initial vacuum state remains intact.

As part of this discovery, the researchers observed long-lived oscillations under certain physical conditions. These findings demonstrate how ultracold atoms can bring complex quantum-field processes into a controlled laboratory environment for study and analysis.

When the simulated particle mass was set to zero, the team noticed oscillations that resembled collective excitations predicted by the Schwinger model. This observation is significant because it validates the experimental platform's ability to simulate and study hard-to-observe phenomena.

The researchers are now planning further studies using this experiment to investigate rare physical processes that are challenging to observe directly in an experimental setting. The team aims to gain a deeper understanding of these complex phenomena through their continued research.

To expand on their findings, Yuan and his colleagues hope to extend the experiment from one dimension to two dimensions and explore other gauge theories where more complex phenomena such as string breaking become accessible.

Researchers have made significant progress in simulating a complex phenomenon known as matter-antimatter pair production using ultracold atoms.

In this process, two particles of opposite charge are created from energy, but observing it directly is extremely challenging due to its short-lived nature and the difficulty of detecting these particles. The team's experiment utilized a cold-atom gauge-theory quantum simulator to model this phenomenon, allowing for a more in-depth understanding of the underlying mechanisms.

The researchers aim to expand their findings by exploring other gauge theories where even more complex phenomena can be studied, such as string breaking.

---
Source: [Phys.org](https://phys.org/news/2026-10-ultracold-atoms-simulate-hard-antimatter.html)  
Published by News Central Site: https://newscentral.site/simulating-particle-antiparticle-pair-creation-through-strong/