The idea that mass equals information is a concept from theoretical physics known as the holographic principle, which suggests a deep connection between information and the geometry of space-time. According to this principle, the information content of a region can be related to its surface area rather than its volume.
However, it's important to note that the holographic principle doesn't provide a direct formula or conversion factor for converting information to mass. It is a theoretical concept that arises in the context of quantum gravity and black hole physics.
In the specific case of a single qubit, which represents the smallest unit of information in quantum computing, it is not possible to assign a meaningful mass to it directly. Qubits are typically implemented using physical systems like superconducting circuits or trapped ions, and the mass associated with these physical implementations is related to the specific properties and configurations of the underlying materials.
It's worth mentioning that the relationship between information and mass is a complex and active area of research in theoretical physics, particularly in the context of quantum gravity, black holes, and the nature of spacetime. However, at present, there is no widely accepted and experimentally verified framework for directly converting information to mass on a qubit-by-qubit basis.