One-sided destructive quantum interference from an exceptional-point-based metasurface

Liang, Hong; Lau, Kai Ming; Wong, Wai Chun; Du, Shengwang; Tam, Wing Yim; Li, Jensen

doi:10.1103/physreva.104.063710

Cited by 8 publications

(7 citation statements)

References 48 publications

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“…The physical dimensions of the unit cells, such as the size of the gaps, are changed, the effective permittivity is significantly modified, demonstrating that one can achieve MMs with significant tunability by changing the geometry of their unit cells. [ 22 ] Our resonator geometrical pattern distribution and formation have been showcased by Liang et al, [ 49 ] as illustrated in Figure 1b, they demonstrated the quantum interference effect of a two‐port device using an input–output map in the Fock state. Each square cell has been indicated by its output state (row) and input state (column).…”

Section: Modelingmentioning

confidence: 65%

Quantum Inspired Broadband Photonic Absorber: Potential Application as Solar Sail along with Mobility Analysis

et al. 2023

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Electromagnetic wideband absorption is still perceived as a critical and formidable challenge to address with an unambiguous photonic absorber. Subwavelength metamaterial unit cells with unique and controlled features have recently gained considerable interest. However, meta‐atoms, generated using a quantum‐inspired pattern distribution, are underwhelming in existing literature to design photonic absorbers and their potential application to manufacture solar sails is still quite uncommon. In this article, to create a flexible, polarization‐insensitive, ultrathin and broadband metamaterial absorber; quantum interference pattern inspired design has been utilized. Notably, this work proposes a novel approach of fabricating solar sails for the space exploration that incorporates our proposed broadband photonic absorber rather than conventional reflectors. The Quantum‐Inspired‐Meta‐Absorber (QIMA) exhibits an absorption of over 91% for the visible domain i.e., 380 to 800 nm. It has a 99.99% peak absorption at 525.352 nm under a conventional plane‐polarized source. The study shows that broadband absorbers are almost equivalent to excellent reflectors to design the solar sails in terms of the time averaged force calculated by utilizing the Maxwell stress tensor method. Thus, the QIMA has the potential to be a viable alternative to reflectors in the design of futuristic solar sails for space exploration. The interference theory model has also been utilized to assure the dependability of calculated data, and additionally, the standard AM1.5 solar spectrum has been utilized to demonstrate the QIMA’s solar harvesting potentiality.This article is protected by copyright. All rights reserved.

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Section: Modelingmentioning

confidence: 65%

Quantum Inspired Broadband Photonic Absorber: Potential Application as Solar Sail along with Mobility Analysis

et al. 2023

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“…Meanwhile, EPs have applications in state engineering as well. For example, an EP-induced UZR can provide novel two-photon interference to control two-photon states [19,20]. EP also enables optimal ways to engineer quantum states in a two level systems [50].…”

Section: Discussionmentioning

confidence: 99%

“…For instance, the quantum interference in a PT-symmetric waveguide has been shown to be different from that in Hermitian systems [18]. The use of UZR metasurface for photon state transformations [19,20] has also been explored. Chiral quantum state conversions have been experimentally observed in a cold atom system [21].…”

Section: Introductionmentioning

confidence: 99%

Exceptional-point sensing with a quantum interferometer

Wong

Li²

2023

New J. Phys.

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Recently, multiple studies have suggested that exceptional points (EPs) in lossless nonlinear optical systems can minimize quantum noise arising from the material gain and loss in conventional non-Hermitian systems, offering the possibility of quantum EP sensing. Meanwhile, nonlinear SU(1,1) interferometers have been established as useful in sensing due to their reduced quantum noise. In this work, we demonstrate the existence of EPs in a dual-beam SU(1,1) interferometer with two nonlinear parametric amplifiers. Our analysis of the input-output matrix in terms of quadrature amplitude shows that EPs can be linked to both high signal, through a zero matrix element, and low noise, through noise preservation, by selecting an appropriate operation gauge of the quadrature amplitude. Additionally, for a multistage SU(1,1) interferometer, EPs of the overall input-output matrix form multiple bands of high signal-to-noise ratio (SNR) which further separate into two phases indicated by the EPs of the transfer matrix of a repeating unit. Our investigations demonstrate the significance of quantum EPs in quantum interferometer sensing and broaden the operating regimes beyond the traditional diabolical point to EPs while still maintaining a high SNR.

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“…The metal Cr in this structure causes photon energy loss. Liang et al 166 showed that involving a non-Hermitian exceptional point can modify and manipulate two-photon quantum interference. They used scattering theory to predict and simulate an asymmetric quantum interference device.…”

Section: ■ Nonclassical Metasurfacementioning

confidence: 99%

“…In quantum optics, optical loss and hence the nonhermiticity are detrimental, and therefore researchers have been working hard trying to avoid it. However, very recent studies have shown that non-Hermitian optical systems could be exploited for exotic manipulation of quantum optical states, such as one-sided quantum interference 166 and the insensitivity of the quantum state of light to thermally induce noise in certain non-Hermitian optical systems. 178 These studies open up new possibilities for non-Hermitian optical metasurfaces for potential applications in quantum state preparation and information processing.…”

Section: ■ Concluding Remarksmentioning

confidence: 99%

Emerging Trend in Unconventional Metasurfaces: From Nonlinear, Non-Hermitian to Nonclassical Metasurfaces

Fan

Liang

et al. 2022

ACS Photonics

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Metasurfaces, benefiting from the flexibility in engineering the resonance, near-field, symmetry, and scattering properties of individual building blocks, are promising not only for a wide range of practical applications in the classical linear optical regime, but also facilitate research into new unconventional areas. Very recently, we have been witnessing the second quantum revolution in which quantum information processing and computation are becoming a reality. In this review, we will focus on some of the emerging developments of metasurfaces that work in the nonlinear, non-Hermitian, nonclassical, or quantum regime. We review some of the common principles shared by the development of these metasurfaces, including local field enhancement and the consideration of structure, lattice, and time-reversal symmetries.

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One-sided destructive quantum interference from an exceptional-point-based metasurface

Cited by 8 publications

References 48 publications

Quantum Inspired Broadband Photonic Absorber: Potential Application as Solar Sail along with Mobility Analysis

Quantum Inspired Broadband Photonic Absorber: Potential Application as Solar Sail along with Mobility Analysis

Exceptional-point sensing with a quantum interferometer

Emerging Trend in Unconventional Metasurfaces: From Nonlinear, Non-Hermitian to Nonclassical Metasurfaces

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