Journal
SCIENCE
Volume 347, Issue 6217, Pages 53-56Publisher
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1261033
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Funding
- Swiss National Science Foundation [200021_134776]
- National Centre of Competence in Research for Quantum Science and Technology (QSIT)
- Swiss National Science Foundation (SNF) [200021_134776] Funding Source: Swiss National Science Foundation (SNF)
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The robust generation of quantum states in the presence of decoherence is a primary challenge for explorations of quantum mechanics at larger scales. Using the mechanical motion of a single trapped ion, we utilize reservoir engineering to generate squeezed, coherent, and displaced-squeezed states as steady states in the presence of noise. We verify the created state by generating two-state correlated spin-motion Rabi oscillations, resulting in high-contrast measurements. For both cooling and measurement, we use spin-oscillator couplings that provide transitions between oscillator states in an engineered Fock state basis. Our approach should facilitate studies of entanglement, quantum computation, and open-system quantum simulations in a wide range of physical systems.
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