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Title: Toward Long-Range Entanglement between Electrically Driven Single-Molecule Magnets

Abstract

Over the past two decades, several molecules have been explored as possible building blocks of a quantum computer, a device that would provide exponential speedups for a number of problems, including the simulation of large, strongly correlated chemical systems. Achieving strong interactions and entanglement between molecular qubits remains an outstanding challenge. In this research, we show that the TbPc2 single-molecule magnet has the potential to overcome this obstacle because of its sensitivity to electric fields stemming from the hyperfine Stark effect. We show how this feature can be leveraged to achieve long-range entanglement between pairs of molecules using a superconducting resonator as a mediator. Our findings suggest that the molecule–resonator interaction is near the edge of the strong-coupling regime and could potentially pass into it given a more detailed, quantitative understanding of the TbPc2 molecule.

Authors:
ORCiD logo [1]; ORCiD logo [1];  [1];  [1];  [1]
  1. Virginia Polytechnic Inst. and State Univ. (Virginia Tech), Blacksburg, VA (United States)
Publication Date:
Research Org.:
Virginia Polytechnic Inst. and State Univ. (Virginia Tech), Blacksburg, VA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences, and Biosciences Division
OSTI Identifier:
1631162
Grant/Contract Number:  
SC0018326
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Physical Chemistry Letters
Additional Journal Information:
Journal Volume: 10; Journal Issue: 23; Journal ID: ISSN 1948-7185
Publisher:
American Chemical Society
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; single molecule magnet; TbPc2 molecule; long-range entanglement; hyperfine Stark effect; superconducting resonator; strong-coupling limit

Citation Formats

Najafi, Khadijeh, Wysocki, Aleksander L., Park, Kyungwha, Economou, Sophia E., and Barnes, Edwin. Toward Long-Range Entanglement between Electrically Driven Single-Molecule Magnets. United States: N. p., 2019. Web. https://doi.org/10.1021/acs.jpclett.9b03131.
Najafi, Khadijeh, Wysocki, Aleksander L., Park, Kyungwha, Economou, Sophia E., & Barnes, Edwin. Toward Long-Range Entanglement between Electrically Driven Single-Molecule Magnets. United States. https://doi.org/10.1021/acs.jpclett.9b03131
Najafi, Khadijeh, Wysocki, Aleksander L., Park, Kyungwha, Economou, Sophia E., and Barnes, Edwin. Tue . "Toward Long-Range Entanglement between Electrically Driven Single-Molecule Magnets". United States. https://doi.org/10.1021/acs.jpclett.9b03131. https://www.osti.gov/servlets/purl/1631162.
@article{osti_1631162,
title = {Toward Long-Range Entanglement between Electrically Driven Single-Molecule Magnets},
author = {Najafi, Khadijeh and Wysocki, Aleksander L. and Park, Kyungwha and Economou, Sophia E. and Barnes, Edwin},
abstractNote = {Over the past two decades, several molecules have been explored as possible building blocks of a quantum computer, a device that would provide exponential speedups for a number of problems, including the simulation of large, strongly correlated chemical systems. Achieving strong interactions and entanglement between molecular qubits remains an outstanding challenge. In this research, we show that the TbPc2 single-molecule magnet has the potential to overcome this obstacle because of its sensitivity to electric fields stemming from the hyperfine Stark effect. We show how this feature can be leveraged to achieve long-range entanglement between pairs of molecules using a superconducting resonator as a mediator. Our findings suggest that the molecule–resonator interaction is near the edge of the strong-coupling regime and could potentially pass into it given a more detailed, quantitative understanding of the TbPc2 molecule.},
doi = {10.1021/acs.jpclett.9b03131},
journal = {Journal of Physical Chemistry Letters},
number = 23,
volume = 10,
place = {United States},
year = {2019},
month = {11}
}

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