期刊
PHYSICAL REVIEW LETTERS
卷 109, 期 18, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.109.183602
关键词
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资金
- National Science Foundation [DMR-1004406]
- U.S. Army Research Office [W911NF-11-1-0029, W911NF-09-1-0514]
- Office of the Director of National Intelligence (ODNI), Intelligence Advanced Research Projects Activity (IARPA) through the Army Research Office
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [1004406] Funding Source: National Science Foundation
We demonstrate quantum bath engineering for a superconducting artificial atom coupled to a microwave cavity. By tailoring the spectrum of microwave photon shot noise in the cavity, we create a dissipative environment that autonomously relaxes the atom to an arbitrarily specified coherent superposition of the ground and excited states. In the presence of background thermal excitations, this mechanism increases state purity and effectively cools the dressed atom state to a low temperature.
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