If you've ever parked in a public space on a busy day, you may have noticed chalk marks on your tires when you went to leave.

These “qubits” are notoriously sensitive to heat and radiation, which can spoil their calculations, just as stray chalk marks might make the numeral 1 look like a 7 on a chalkboard. A research effort ...

From The Philadelphia North American. TimesMachine is an exclusive benefit for home delivery and digital subscribers. Full text is unavailable for this digitized archive article. Subscribers may ...

These “qubits” are notoriously sensitive to heat and radiation, which can spoil their calculations just as stray chalk marks might make the numeral 1 look like a 7. Erasing these qubits after ...