NOON State Generation with Phonons in Acoustic Wave Resonators Assisted by a Nitrogen‐Vacancy‐Center Ensemble

Abstract

Since the quality factor of an acoustic wave resonator (AWR) reached 10 11 , AWRs have been regarded as a good carrier of quantum information. In this paper, a scheme to construct a NOON state with two AWRs assisted by a nitrogen-vacancy-center ensemble (NVE) is proposed. The two AWRs cross each other vertically, and the NVE is located at the center of the crossing. By considering the decoherence of the system and using resonant interactions between the AWRs and the NVE, and the single-qubit operation of the NVE, a NOON state can be achieved with a fidelity higher than 98.8% when the number of phonons in the AWR is N ≤ 3.

Quantum nanophotonic and nanoplasmonic sensing: towards quantum optical bioscience laboratories on chip

“…These nanocrystals have been shown to be biocompatible and have potential sensing and imaging applications within living cells [168]; exploiting both their potential for magnetometry (see also Section 7.1) and subdiffraction imaging (see also Section 7.5). NV centres have also been proposed as sources of entangled photons [169,170]. A potential issue with single photon emission from NV centres is a low photon collection efficiency due to the lack of directional emission.…”

One-step generation of Bell state on nonlocal acoustics wave resonators assisted by nitrogen-vacancy center ensembles

“…Meanwhile, many schemes of quantum entanglement generation have been proposed and demonstrated both theoretically and experimentally based on various quantum systems such as cavity quantum electrodynamics [20][21][22][23], quantum dots [24][25][26][27][28], nitrogen-vacancy (NV) centers [29][30][31][32][33], photons [34], optomechanical systems [35][36][37][38], nanomechanical * Author to whom any correspondence should be addressed. resonators [39][40][41][42] and acoustic wave resonators (AWRs) [5,43,44].…”

“…Among the quantum systems, AWR performs a good quantum information carrier as the quality factor of AWR has been increased to 10 11 [45], which means it can store phonons with a low leakage rate. Some basic tasks of QIP [24,[46][47][48][49][50][51][52] on AWR have been studied and the research on the coupling between an AWR and other quantum systems [44,[53][54][55][56][57][58][59][60] has attracted much attention. In 2010, O'Connell et al [46] achieve the single-phonon control of an AWR with the superconducting qubit.…”

Generation of NOON States in Waveguide Arrays

“…Most schemes to produce NOON states are in the optical regime [13]; however, in the case of cavity fields, it has been shown that NOON states with N = 4 may be generated [17], while in ion-laser interactions [18] NOON states may be generated for larger N 's [19]. Such nonclassical states have also been generated in acoustic wave resonators with high fidelities [20]. It has been pointed out that NOON states manifest unique coherence properties by showing that they exhibit a periodic transition between spatially bunched and antibunched states when undergo Bloch oscillations, for which the period of bunching/antibunching oscillations is N times faster than the period of the oscillation of the photon density [21].…”

“…Most schemes to produce NOON states are in the optical regime [13]; however, in the case of cavity fields, it has been shown that NOON states with N = 4 may be generated [17], while in ion-laser interactions [18] NOON states may be generated for larger N 's [19]. Such nonclassical states have also been generated in acoustic wave resonators with high fidelities [20].…”