How efficient is transport of quantum cargo through multiple highways?

Roy, Saptarshi; Das, Tamoghna; Das, Debmalya; Sen, Aditi; Sen, Ujjwal

doi:10.1016/j.aop.2020.168281

Cited by 10 publications

(5 citation statements)

References 88 publications

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“…We have outlined an underlying idea based on the dynamic control of these graphs [23] suggesting potential applications as quantum memories [25] and sequential transportation of quantum cargo [26]. We hope our findings might be helpful to the development of new protocols of quantum communication.…”

Section: Discussionmentioning

confidence: 88%

High fidelity state transfer via continuous-time quantum walks from distributed states

Engster¹,

Amorim²

2021

Preprint

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Section: Discussionmentioning

confidence: 88%

High fidelity state transfer via continuous-time quantum walks from distributed states

Engster¹,

Amorim²

2021

Preprint

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“…The protocol worked independently of the initial spin state, which suggests that it can be used as building blocks to the development of dynamical quantum memories if we employ state of the art implementations of quantum walks [17,18,21,22]. Finally, we also envisage the use of the quantum corralling protocol to build quantum cargo protocols, where several qubits are sequentially prepared and sent using single or multiple pathways [28]. difficult times.…”

Section: Discussionmentioning

confidence: 99%

Quantum Corralling

Vieira,

Rigolin,

Amorim

2021

Preprint

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We propose a robust and efficient way to store and transport quantum information via onedimensional discrete time quantum walks. We show how to attain an effective dispersionless wave packet evolution using only two types of local unitary operators (quantum coins or gates), properly engineered to act at predetermined times and at specific lattice sites during the system's time evolution. In particular, we show that a qubit initially localized about a Gaussian distribution can be almost perfectly confined during arbitrary long times or sent and latter recovered at arbitrary distances using only Hadamard and σx gates.

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“…Various generalisations of the original protocol have been proposed. In particular, the original protocol was generalized including general teleportation channel [156], multiport teleportation [157,158,159], teleportation with multiple sender-receiver pairs [160], telecloning [161].…”

Section: Quantum Teleportationmentioning

confidence: 99%