One of the peculiarities of quantum mechanics is the no-cloning theorem which, informally, says that quantum information cannot be copied. It turns out that this "lemon" can be squeezed into lemonade in the context of quantum cryptography. I'll discuss some of the main developments that occurred in the past decade in uncloneable cryptography, including, variants of quantum money which on the one hand is similar to cash, while being digitally transferrable and provably unforgeable (based on some computation hardness assumptions); quantum copy protection for software; and uncloneable decryptors.
About the speaker:
Dr. Or Sattath is a computer scientist focusing on quantum cryptography, quantum computing, and theory of computer science. He is an assistant professor at Ben-Gurion University, and previously was a post-doc at MIT, the Hebrew University, and UC Berkeley. He completed his PhD. at the Hebrew University under the supervision of Prof. Dorit Aharonov and Prof. Julia Kempe. He received the Simons research fellowship during his post-doc and a Clore scholarship for his PhD. studies.