Helium Atoms Found to Be in an Entangled State for the First Time

Scientists at the Australian National University have, for the first time in history, demonstrated that helium atoms can exist simultaneously in two separate locations. This discovery confirms a nearly century-old quantum prediction and was published in the journal Nature Communications. This breakthrough is expected to provide valuable insights into the relationship between quantum mechanics and gravity, serving as a significant foundation for the pursuit of the ‘Theory of Everything.’ Kathmandu, April 6.

Quantum physicists at the Australian National University (ANU) have directly observed one of the universe’s most complex and peculiar phenomena, shaking the foundations of science. They identified helium atoms existing in an entangled state, occupying two distinct places simultaneously—a first for such particles. According to lead researchers Yogesh Sridhar and Dr. Xin Hajmyan, this work confirms a quantum prediction made nearly 100 years ago.

Previously, such experiments were successful only with photons (particles of light). However, because helium atoms are much larger and subject to gravitational effects, this research is considered a major advancement. Dr. Hajmyan explained, “While textbooks describe particles being in two places at once and interacting with themselves (interference), witnessing this phenomenon firsthand is truly beautiful and astonishing.” This study is expected to deepen understanding of the interplay between quantum mechanics at microscopic scales and gravity on cosmic scales, providing a stronger foundation for the highly anticipated ‘Theory of Everything.’