Scientists from the Stevens Institute of Technology, the National Institute of Standards and Technology (NIST), and Colorado State University have found that it is possible that time could move both fast and slow in quantum superposition. Using ultraprecise atomic clocks and technologies developed from trapped-ion quantum computing, the scientists are close to experimentally testing the quantum realities of time itself. The study suggests that combining these two concepts can reveal hidden quantum signatures of time-flow that can no longer be described by classical physics. The results were published in the journal.