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Manybody interferometry of quantum fluids
Gabrielle Roberts1, Andrei Vrajitoarea1,2, Brendan Saxberg1
1Department of Physics, University of Chicago, Chicago, IL, USA.
Science Advances
|July 19, 2024
Summary
We developed manybody Ramsey interferometry to characterize quantum matter. This quantum computing approach entangles state preparation and characterization for enhanced information extraction about manybody eigenstates.
Area of Science:
- Quantum Science and Engineering
- Quantum Information Science
- Condensed Matter Physics
Background:
- Characterizing strongly correlated quantum matter is challenging due to complex entanglement.
- Integrating quantum state preparation and characterization offers a quantum advantage for information extraction.
Purpose of the Study:
- To introduce a novel method, manybody Ramsey interferometry, for efficient quantum matter characterization.
- To leverage quantum computing for probing complex quantum systems.
Main Methods:
- Combined adiabatic state preparation and Ramsey spectroscopy.
- Utilized a one-to-one mapping between computational-basis states and manybody eigenstates.
- Employed an ancilla qubit to control superposition evolution and localize phase information via tomography.
Main Results:
- Successfully prepared and characterized superpositions of manybody eigenstates.
- Extracted information on excitation spectra and thermodynamic observables.
- Demonstrated efficient information extraction from quantum matter.
Conclusions:
- Manybody Ramsey interferometry provides a powerful tool for quantum matter studies.
- Quantum computers can be effectively utilized to probe complex quantum phenomena.
- Entangling state preparation and characterization unlocks quantum advantages in information extraction.
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