The Quantum Age: from Atoms and Photons to Quantum Computers

Arrays of individually trapped neutral atoms, laser cooled to temperatures only a tad above absolute zero, are arising as a new tool for many applications in the emerging world of quantum technologies. Uses of atomic arrays range from atomic clocks and quantum communication networks to quantum simulation and computing. I will discuss the basic principles of trapping individual atoms in arrays of light beams and describe two applications: the coupling of single atoms to single photons in high-quality cavities and quantum computing using neutral atoms. In the latter systems, neutral atoms are used to encode the quantum generalized version of classical bits, so-called qubits. Quantum processing with atomic qubits becomes possible via laser control by exciting atoms to high-energy states. Large quantum systems are highly susceptible to noise processes that can, however, be mitigated by error correction. First steps towards quantum error correction have only recently been demonstrated, ushering in a new era of circuits with logical qubits that are each comprised of many atomic qubits.

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This winter, we will host our public physics talks in Flug Forum at Aspen Center for Physics. Join us starting at 5:00pm for tea and cookies before each talk. The talks will begin at 5:30pm sharp. There is free parking at the Center and in the neighborhood. We also recommend taking the Downtowner or the free RFTA Crosstown Shuttle.

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Please note that seating is first come, first served. We encourage you to arrive early at 5pm for tea and cookies before the lecture. Empty seats will be released at 5:20pm.

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