Co-Design quantum simulation of nanoscale NMR

Algaba, Manuel G.; Mario, Ponce-Martinez,; Munuera-Javaloy, C.; Pina-Canelles, Vicente; Thapa, Manish; Taketani, Bruno G.; Leib, Martin; Vega, Inés de; Casanova, Jorge; Heimonen, Hermanni

doi:10.1103/physrevresearch.4.043089

Cited by 8 publications

(3 citation statements)

References 53 publications

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“…As explained, we arrange the modes next to each other horizontally (P ↑ ,P ↓ ) and connect them through a two-qubit edge operator E ↑↓ = X ↑ X ↓ and the vertex operators of both modes remain single-qubit Z's. In cases where one has more than one mode per lattice site it is necessary to implement an fSWAP network, which alternates fSWAP operations be-tween even (2k, 2k + 1) and odd (2k + 1, 2k + 2) pairs of modes associated to the site, as done for normal qubit swap networks [61]. This ensures that every mode travels to both ends of the chain and then interacts with similar modes of neighboring lattice sites after applying only linear number of swap layers.…”

Section: Local Fermion-to-qubit Mappings For Square Qubit Layoutsmentioning

confidence: 99%

Low-depth simulations of fermionic systems on square-grid quantum hardware

Algaba¹,

Sriluckshmy²,

Leib³

et al. 2023

Preprint

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Section: Local Fermion-to-qubit Mappings For Square Qubit Layoutsmentioning

confidence: 99%

Low-depth simulations of fermionic systems on square-grid quantum hardware

Algaba¹,

Sriluckshmy²,

Leib³

et al. 2023

Preprint

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“…The simulation target is the achievement of a hyperpolarization state that is polarized beyond the level of a thermal state in a magnetic field. Such a quantum computer-based simulation could lead to improved detection of various malformations in tissues -such as the heart or brain -without the use of ionizing radiation [2]. In a broader context, the qubit-resonator star platform can simulate all problems based on the transverse Spin-Ising model.…”

Section: A Solution For Advanced Computational Challenges?mentioning

confidence: 99%

Fastlane to quantum advantage through co‐design

Rank¹,

Deppe²

2023

PhotonicsViews

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Quantum computers promise to solve certain advanced computational tasks with higher computational speed, higher accuracy, and less energy consumption. To be useful for real‐world applications, traditional quantum algorithms typically require significantly more sophisticated quantum computers than are available today.Co‐designing application‐specific quantum integrated circuits (ASICs) is one avenue being explored by quantum computing scientists and engineers to achieve quantum advantage in the near future. Currently, the co‐design paradigm is most prominently pursued in the field of superconducting quantum systems, which operate in the microwave regime.Nevertheless, due to the universality of the underlying light‐matter coupling mechanisms, insights taken from the field of photonics could provide valuable contributions to the advancement of co‐designed quantum computers.

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“…Our aim is to simulate the open dynamics of a spin-boson model coupled to a dissipative channel on a digital quantum computer. We do this by mapping the bosonic modes to qubits, Trotterizing the unitary evolution, and modeling the dissipative portion via repeated collisions with a reset auxiliary qubit [ 35 , 39 , 40 ]. In doing so, we focus on using different noise levels in the quantum computer, from the value in current hardware, to

of it.…”

Section: Introductionmentioning

confidence: 99%

Digital Quantum Simulation of the Spin-Boson Model under Markovian Open-System Dynamics

Bürger

Kwek

Poletti

2022

Entropy

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Digital quantum computers have the potential to simulate complex quantum systems. The spin-boson model is one of such systems, used in disparate physical domains. Importantly, in a number of setups, the spin-boson model is open, i.e., the system is in contact with an external environment which can, for instance, cause the decay of the spin state. Here, we study how to simulate such open quantum dynamics in a digital quantum computer, for which we use an IBM hardware. We consider in particular how accurate different implementations of the evolution result as a function of the level of noise in the hardware and of the parameters of the open dynamics. For the regimes studied, we show that the key aspect is to simulate the unitary portion of the dynamics, while the dissipative part can lead to a more noise-resistant simulation. We consider both a single spin coupled to a harmonic oscillator, and also two spins coupled to the oscillator. In the latter case, we show that it is possible to simulate the emergence of correlations between the spins via the oscillator.

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Co-Design quantum simulation of nanoscale NMR

Cited by 8 publications

References 53 publications

Low-depth simulations of fermionic systems on square-grid quantum hardware

Low-depth simulations of fermionic systems on square-grid quantum hardware

Fastlane to quantum advantage through co‐design

Digital Quantum Simulation of the Spin-Boson Model under Markovian Open-System Dynamics

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