Physical quantum dynamics and quantum measurement

点击翻译按钮获取中文摘要

Quantum technologies are no longer science fiction. Large corporations, including Microsoft, Google, IBM, BBN Raytheon, Lockheed, HRL, and Canadian companies like D-Wave, and Anyon Systems, are all investing heavily in this area. The end goal is not necessarily as ambitious as building a universal quantum computer. Shorter-term quantum technologies have the potential to revolutionize the way we do fundamental science. These technologies include nanometre-scale magnetic-field sensors that rely on measuring the quantum states of individual spins and devices that can simulate the complex quantum dynamics of an interacting many-body system. Quantum sensors have now been used to map out the magnetic field of a single cell and quantum simulations in trapped-ion and trapped-atom systems are reaching into territory that goes beyond what we can predict in a traditional computer simulation.