Science Café
Can we do better than Julius Caesar? Building unbreakable cryptography
“For millennia, people relied on cryptographic ciphers based on mathematics. These always get broken from time to time and require replacement, as our computational abilities improve. A new kind of cryptography based on the laws of quantum physics is now being deployed, promising to solve the communication security problem forever."
“For millennia, people relied on cryptographic ciphers based on mathematics. These always get broken from time to time and require replacement, as our computational abilities improve. A new kind of cryptography based on the laws of quantum physics is now being deployed, promising to solve the communication security problem forever."
A Quantum Observer does not kill the Cat
“A quantum simulator is a device able to emulate in a lab the most sophisticated quantum objects, from the famous Schrödinger cat to complex systems. It can be used for synthesising new drugs, designing new materials, simulating cosmological objects such as black holes, and perhaps even recreating the conditions of our early Universe. The biggest challenge is that quantum mechanics predicts that observing a quantum simulator inevitably destroys it. A European-Chinese team of quantum physicists lead by the Turku Quantum Technology group is currently investigating a way out. The solution is to engineer a quantum probe that observes quantumness without observing it! Come to listen to the newest revolutionary discovery in the quantum realm!"
“A quantum simulator is a device able to emulate in a lab the most sophisticated quantum objects, from the famous Schrödinger cat to complex systems. It can be used for synthesising new drugs, designing new materials, simulating cosmological objects such as black holes, and perhaps even recreating the conditions of our early Universe. The biggest challenge is that quantum mechanics predicts that observing a quantum simulator inevitably destroys it. A European-Chinese team of quantum physicists lead by the Turku Quantum Technology group is currently investigating a way out. The solution is to engineer a quantum probe that observes quantumness without observing it! Come to listen to the newest revolutionary discovery in the quantum realm!"
