In a new study published in Nature, a research team has developed a method for communicating arbitrary, opaque information by linking it to known physical phenomena. This method could have a wide range of applications, from secure communication to quantum computing. The team, led by Professor Richard Penty of the University of Cambridge, used a technique called “entanglement” to link the information to known physical properties of light. By synchronizing the light’s properties with the information, they were able to send the information over fiber-optic networks without it being visible to an observer. This could enable secure communication, as the data is inaccessible to anyone who doesn’t have the right equipment, and could also be used to create a quantum computer.

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source: Phys.org