Aarhus University Seal / Aarhus Universitets segl

Klaus Mølmer

Fast Multiqubit Gates by Adiabatic Evolution in Interacting Excited-State Manifolds of Rydberg Atoms and Superconducting Circuits

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avisTidsskriftartikelForskningpeer review

Standard

Fast Multiqubit Gates by Adiabatic Evolution in Interacting Excited-State Manifolds of Rydberg Atoms and Superconducting Circuits. / Khazali, Mohammadsadegh; Molmer, Klaus.

I: Physical Review X, Bind 10, Nr. 2, 021054, 06.2020.

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avisTidsskriftartikelForskningpeer review

Harvard

APA

CBE

MLA

Vancouver

Author

Bibtex

@article{59453824df0849658a7d05d0415f0959,
title = "Fast Multiqubit Gates by Adiabatic Evolution in Interacting Excited-State Manifolds of Rydberg Atoms and Superconducting Circuits",
abstract = "Quantum computing and quantum simulation can be implemented by concatenation of one- and two-qubit gates and interactions. For most physical implementations, however, it may be advantageous to explore state components and interactions that depart from this universal paradigm and offer faster or more robust access to more advanced operations on the system. In this article, we show that adiabatic passage along the dark eigenstate of excitation exchange interactions can be used to implement fast multiqubit Toffoli (C-k-NOT) and fan-out (C-NOTk) gates. This mechanism can be realized by simultaneous excitation of atoms to Rydberg levels, featuring resonant exchange interaction. Our theoretical estimates and numerical simulations show that these multiqubit Rydberg gates are possible with errors below 1% for up to 20 qubits. The excitation exchange mechanism is ubiquitous across experimental platforms, and we show that similar multiqubit gates can be implemented in superconducting circuits.",
keywords = "QUANTUM INFORMATION, MULTIPARTICLE ENTANGLEMENT, SIMULATIONS, REALIZATION, BLOCKADE, CREATION, COST",
author = "Mohammadsadegh Khazali and Klaus Molmer",
year = "2020",
month = jun,
doi = "10.1103/PhysRevX.10.021054",
language = "English",
volume = "10",
journal = "Physical Review X",
issn = "2160-3308",
publisher = "American Physical Society",
number = "2",

}

RIS

TY - JOUR

T1 - Fast Multiqubit Gates by Adiabatic Evolution in Interacting Excited-State Manifolds of Rydberg Atoms and Superconducting Circuits

AU - Khazali, Mohammadsadegh

AU - Molmer, Klaus

PY - 2020/6

Y1 - 2020/6

N2 - Quantum computing and quantum simulation can be implemented by concatenation of one- and two-qubit gates and interactions. For most physical implementations, however, it may be advantageous to explore state components and interactions that depart from this universal paradigm and offer faster or more robust access to more advanced operations on the system. In this article, we show that adiabatic passage along the dark eigenstate of excitation exchange interactions can be used to implement fast multiqubit Toffoli (C-k-NOT) and fan-out (C-NOTk) gates. This mechanism can be realized by simultaneous excitation of atoms to Rydberg levels, featuring resonant exchange interaction. Our theoretical estimates and numerical simulations show that these multiqubit Rydberg gates are possible with errors below 1% for up to 20 qubits. The excitation exchange mechanism is ubiquitous across experimental platforms, and we show that similar multiqubit gates can be implemented in superconducting circuits.

AB - Quantum computing and quantum simulation can be implemented by concatenation of one- and two-qubit gates and interactions. For most physical implementations, however, it may be advantageous to explore state components and interactions that depart from this universal paradigm and offer faster or more robust access to more advanced operations on the system. In this article, we show that adiabatic passage along the dark eigenstate of excitation exchange interactions can be used to implement fast multiqubit Toffoli (C-k-NOT) and fan-out (C-NOTk) gates. This mechanism can be realized by simultaneous excitation of atoms to Rydberg levels, featuring resonant exchange interaction. Our theoretical estimates and numerical simulations show that these multiqubit Rydberg gates are possible with errors below 1% for up to 20 qubits. The excitation exchange mechanism is ubiquitous across experimental platforms, and we show that similar multiqubit gates can be implemented in superconducting circuits.

KW - QUANTUM INFORMATION

KW - MULTIPARTICLE ENTANGLEMENT

KW - SIMULATIONS

KW - REALIZATION

KW - BLOCKADE

KW - CREATION

KW - COST

U2 - 10.1103/PhysRevX.10.021054

DO - 10.1103/PhysRevX.10.021054

M3 - Journal article

VL - 10

JO - Physical Review X

JF - Physical Review X

SN - 2160-3308

IS - 2

M1 - 021054

ER -