1367-2630_15_6_063010.pdf (448.19 kB)
Engineering entanglement for metrology with rotating matter waves
journal contribution
posted on 2023-06-08, 20:59 authored by L M Rico-Gutierrez, T P Spiller, Jacob DunninghamJacob DunninghamEntangled states of rotating, trapped ultracold bosons form a very promising scenario for quantum metrology. In order to employ such states for metrology, it is vital to understand their detailed form and the enhanced accuracy with which they could measure phase, in this case generated through rotation. In this work, we study the rotation of ultracold bosons in an asymmetric trapping potential beyond the lowest Landau level (LLL) approximation. We demonstrate that while the LLL can identify reasonably the critical frequency for a quantum phase transition and entangled state generation, it is vital to go beyond the LLL to identify the details of the state and quantify the quantum Fisher information (which bounds the accuracy of the phase measurement). We thus identify a new parameter regime for useful entangled state generation, amenable to experimental investigation.
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- Published
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- Published version
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New Journal of PhysicsISSN
1367-2630Publisher
IOP PublishingExternal DOI
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6Volume
15Page range
063010Department affiliated with
- Physics and Astronomy Publications
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- Yes
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- Yes
Legacy Posted Date
2015-06-04First Open Access (FOA) Date
2015-06-04First Compliant Deposit (FCD) Date
2015-06-04Usage metrics
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