Magnon-mediated quantum battery under systematic errors

Qi, Shi-fan; Jing, Jun

doi:10.1103/physreva.104.032606

Cited by 25 publications

(13 citation statements)

References 53 publications

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“…Recently in this direction the dispersive regime of this model, i.e. the limit |ω M − ω A,B | g, has been discussed in the context of QBs [48]. There, one obtains an effective direct TLS-TLS coupling which is derived for completeness in Appendix D.…”

Section: Cavity-mediated Couplingmentioning

confidence: 99%

“…The energy transfer between them will be mediated by another simple quantum system which play the role of a quantum bus. The two systems, exchanging energy through the mediator, can be seen both as a QB and its charger [39,48] or as a QB and an active user of the energy stored in the battery itself. In our analysis, the role of mediator will be played by an additional TLS or by the photons confined into a resonant cavity [47].…”

Section: Introductionmentioning

confidence: 99%

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Enhancing coherent energy transfer between quantum devices via a mediator

Crescente¹,

Ferraro²,

Carrega³

et al. 2022

Preprint

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We investigate the coherent energy transfer between two quantum systems mediated by a quantum bus. In particular, we consider the energy transfer process between two qubits, and how it can be influenced by using a third qubit or photons in a resonant cavity as mediators. Inspecting different figures of merit and considering both on and off-resonance configurations, we characterize the energy transfer performances. We show that, while the qubit-mediated transfer only offers very few advantages with respect to a direct coupling case, the cavity-mediated one is progressively more and more efficient as a function of the number of photons stored in the cavity that acts as a quantum bus. The speeding-up of the energy transfer time, due to a quantum mediator paves the way for new architecture designs in quantum technologies and energy based quantum logics.

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Section: Cavity-mediated Couplingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Enhancing coherent energy transfer between quantum devices via a mediator

Crescente¹,

Ferraro²,

Carrega³

et al. 2022

Preprint

View full text Add to dashboard Cite

show abstract

“…The majority of the considered approaches for QBs are based on two-level systems (qubits) promoted from the ground to the excited state by means of the action of another system playing the role of a charger [26][27][28]. This latter element can be genuinely quantum, such as photons trapped into a cavity [18], or more simply a classical time dependent drive directly applied to the qubit [14,29,30].…”

Section: Introductionmentioning

confidence: 99%

IBM quantum platforms: a quantum battery perspective

Gemme,

Grossi,

Ferraro

et al. 2022

Preprint

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“…Most approaches concerning operation of QBs consider two-level operational frameworks (qubits), where a charger system assists in their promotion from the ground to excited state [ 9 , 34 , 35 ]. The charger system can be either quantum based or a classical time-dependent operation, driving the qubits [ 36 , 37 ].…”

Section: Introductionmentioning

confidence: 99%

Boosting Quantum Battery-Based IoT Gadgets via RF-Enabled Energy Harvesting

Gautam

Solanki

Sharma

et al. 2022

Sensors

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The search for a highly portable and efficient supply of energy to run small-scale wireless gadgets has captivated the human race for the past few years. As a part of this quest, the idea of realizing a Quantum battery (QB) seems promising. Like any other practically tractable system, the design of QBs also involve several critical challenges. The main problem in this context is to ensure a lossless environment pertaining to the closed-system design of the QB, which is extremely difficult to realize in practice. Herein, we model and optimize various aspects of a Radio-Frequency (RF) Energy Harvesting (EH)-assisted, QB-enabled Internet-of-Things (IoT) system. Several RF-EH modules (in the form of micro- or nano-meter-sized integrated circuits (ICs)) are placed in parallel at the IoT receiver device, and the overall correspondingly harvested energy helps the involved Quantum sources achieve the so-called quasi-stable state. Concretely, the Quantum sources absorb the energy of photons that are emitted by a photon-emitting device controlled by a micro-controller, which also manages the overall harvested energy from the RF-EH ICs. To investigate the considered framework, we first minimize the total transmit power under the constraints on overall harvested energy and the number of RF-EH ICs at the QB-enabled wireless IoT device. Next, we optimize the number of RF-EH ICs, subject to the constraints on total transmit power and overall harvested energy. Correspondingly, we obtain suitable analytical solutions to the above-mentioned problems, respectively, and also cross-validate them using a non-linear program solver. The effectiveness of the proposed technique is reported in the form of numerical results, which are both theoretical and simulations based, by taking a range of operating system parameters into account.

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Magnon-mediated quantum battery under systematic errors

Cited by 25 publications

References 53 publications

Enhancing coherent energy transfer between quantum devices via a mediator

Enhancing coherent energy transfer between quantum devices via a mediator

IBM quantum platforms: a quantum battery perspective

Boosting Quantum Battery-Based IoT Gadgets via RF-Enabled Energy Harvesting

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