SNAPSHOT: Quantum Entanglement


Quantum entanglement, or what Einstein called “spooky action at a distance,” is a quantum mechanical effect that links the state of two objects no matter the distance between them. Physicists at City Tech are exploring new ways to generate entanglement in elements of superconducting circuits. Their method uses another quantum mechanical phenomenon, known as the dynamical Lamb effect.

The study was authored by Ph.D. student Mirko Amico and two physics professors, Roman Kezerashvili and Oleg Berman, both faculty members of City Tech and The Graduate Center, CUNY. The research was published in Physical Review A.

Black and white photo of Albert Einstein

In recent years scientists have put quantum entanglement to use in quantum cryptography, where it can help create secure communications, and in quantum computing, which scientists predict will out-perform today’s computing standards by leaps and bounds.

“Increasing the amount of entanglement and the speed with which it can be generated could lead to improvement in the performance of a quantum computer based on supercomputing circuits, like the ones built by IBM and Google,” Amico said.

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