Journal
PHYSICAL REVIEW LETTERS
Volume 110, Issue 1, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.110.010504
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Funding
- Austrian Academy of Sciences
- European Commission (Q-ESSENCE)
- European Research Council (ERC QOM)
- Austrian Science Fund (FWF)
- Foundational Questions Institute
- John Templeton Foundation
- Qatar National Research Fund [NPRP 4-554-1-084]
- Austrian Science Fund (FWF) [Y 414] Funding Source: researchfish
- Austrian Science Fund (FWF) [W1210] Funding Source: Austrian Science Fund (FWF)
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We introduce a method that can orthogonalize any pure continuous variable quantum state, i.e., generate a state vertical bar psi(perpendicular to)> from vertical bar psi > where = 0, which does not require significant a priori knowledge of the input state. We illustrate how to achieve orthogonalization using the Jaynes-Cummings or beamsplitter interaction, which permits realization in a number of physical systems. Furthermore, we demonstrate how to orthogonalize the motional state of a mechanical oscillator in a cavity optomechanics context by developing a set of coherent phonon level operations. As the mechanical oscillator is a stationary system, such operations can be performed at multiple times providing considerable versatility for quantum state engineering applications. Utilizing this, we additionally introduce a method how to transform any known pure state into any desired target state. DOI: 10.1103/PhysRevLett.110.010504
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