期刊
PHYSICAL REVIEW LETTERS
卷 129, 期 10, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.129.103602
关键词
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资金
- Office of the Director of National Intelligence-Intelligence Advanced Research Projects Activity through ARO [W911NF-16-1-0082]
- U.S. Department of Energy (DOE) [DE-SC0019294, DE-0019449]
- ARO MURI Grant [W911NF-18-1-0218]
- U.S. Department of Energy (DOE) [DE-SC0019294] Funding Source: U.S. Department of Energy (DOE)
The study proposes a general method to determine Fock state distributions and reconstruct the density matrix of arbitrary multimode motional states, applicable to any system with Jaynes-Cummings-type interactions.
Trapped atomic ions are a versatile platform for studying interactions between spins and bosons by coupling the internal states of the ions to their motion. Measurement of complex motional states with multiple modes is challenging, because all motional state populations can only be measured indirectly through the spin state of ions. Here we present a general method to determine the Fock state distributions and to reconstruct the density matrix of an arbitrary multimode motional state. We experimentally verify the method using different entangled states of multiple radial modes in a five-ion chain. This method can be extended to any system with Jaynes-Cummings-type interactions.
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