SWAP Gate between a Majorana Qubit and a Parity-Protected Superconducting Qubit
Abstract
High fidelity quantum information processing requires a combination of fast gates and long-lived quantum memories. Here, in this Letter, we propose a hybrid architecture, where a parity-protected superconducting qubit is directly coupled to a Majorana qubit, which plays the role of a quantum memory. The superconducting qubit is based upon a π-periodic Josephson junction realized with gate-tunable semiconducting wires, where the tunneling of individual Cooper pairs is suppressed. One of the wires additionally contains four Majorana zero modes that define a qubit. We demonstrate that this enables the implementation of a SWAP gate, allowing for the transduction of quantum information between the topological and conventional qubit. This architecture combines fast gates, which can be realized with the superconducting qubit, with a topologically protected Majorana memory.
- Authors:
-
- Univ. of California, Berkeley, CA (United States); ; National Research Council (CNR) (Italy)
- Univ. of California, Berkeley, CA (United States); Harvard Univ., Cambridge, MA (United States)
- Univ. of California, Berkeley, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Materials Sciences Division
- Publication Date:
- Research Org.:
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC); European Union (EU)
- OSTI Identifier:
- 1963835
- Grant/Contract Number:
- AC02-05CH11231; 841894
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review Letters
- Additional Journal Information:
- Journal Volume: 129; Journal Issue: 17; Journal ID: ISSN 0031-9007
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; Majorana fermions; topological quantum computing; superconducting qubits
Citation Formats
Chirolli, Luca, Yao, Norman Y., and Moore, Joel E. SWAP Gate between a Majorana Qubit and a Parity-Protected Superconducting Qubit. United States: N. p., 2022.
Web. doi:10.1103/physrevlett.129.177701.
Chirolli, Luca, Yao, Norman Y., & Moore, Joel E. SWAP Gate between a Majorana Qubit and a Parity-Protected Superconducting Qubit. United States. https://doi.org/10.1103/physrevlett.129.177701
Chirolli, Luca, Yao, Norman Y., and Moore, Joel E. Thu .
"SWAP Gate between a Majorana Qubit and a Parity-Protected Superconducting Qubit". United States. https://doi.org/10.1103/physrevlett.129.177701. https://www.osti.gov/servlets/purl/1963835.
@article{osti_1963835,
title = {SWAP Gate between a Majorana Qubit and a Parity-Protected Superconducting Qubit},
author = {Chirolli, Luca and Yao, Norman Y. and Moore, Joel E.},
abstractNote = {High fidelity quantum information processing requires a combination of fast gates and long-lived quantum memories. Here, in this Letter, we propose a hybrid architecture, where a parity-protected superconducting qubit is directly coupled to a Majorana qubit, which plays the role of a quantum memory. The superconducting qubit is based upon a π-periodic Josephson junction realized with gate-tunable semiconducting wires, where the tunneling of individual Cooper pairs is suppressed. One of the wires additionally contains four Majorana zero modes that define a qubit. We demonstrate that this enables the implementation of a SWAP gate, allowing for the transduction of quantum information between the topological and conventional qubit. This architecture combines fast gates, which can be realized with the superconducting qubit, with a topologically protected Majorana memory.},
doi = {10.1103/physrevlett.129.177701},
journal = {Physical Review Letters},
number = 17,
volume = 129,
place = {United States},
year = {Thu Oct 20 00:00:00 EDT 2022},
month = {Thu Oct 20 00:00:00 EDT 2022}
}
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