Digital Quantum Simulation of Linear and Nonlinear Optical Elements

We provide a recipe for the digitalization of linear and nonlinear quantum optics in networks of superconducting qubits. By combining digital techniques with boson-qubit mappings, we address relevant problems that are typically considered in analog simulators, such as the dynamical Casimir effect or molecular force fields, including nonlinearities. In this way, the benefits of digitalization are extended in principle to a new realm of physical problems. We present preliminary examples launched in IBM Q 5 Tenerife.

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Numerical simulation of linear and nonlinear quantum optics as a design tool for free-space quantum communications and quantum imaging

10.1117/12.451058 ◽

2002 ◽

Author(s):

Ronald E. Meyers ◽

Keith S. Deacon ◽

D. Rosen

Keyword(s):

Numerical Simulation ◽

Quantum Optics ◽

Free Space ◽

Design Tool ◽

Quantum Communications ◽

Quantum Imaging ◽

Nonlinear Quantum ◽

Linear And Nonlinear

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Perspective on Some Recent and Future Developments in Casimir Interactions

Applied Sciences ◽

10.3390/app11010293 ◽

2020 ◽

Vol 11 (1) ◽

pp. 293

Author(s):

Lilia M. Woods ◽

Matthias Krüger ◽

Victor V. Dodonov

Keyword(s):

Nonlinear Optical ◽

Casimir Force ◽

Casimir Effect ◽

Fundamental Constants ◽

Dynamical Casimir Effect ◽

Distance Dependence ◽

New Directions ◽

Recent Developments ◽

Casimir Interactions

Here, we present a critical review of recent developments in Casimir physics motivated by discoveries of novel materials. Specifically, topologically nontrivial properties of the graphene family, Chern and topological insulators, and Weyl semimetals have diverse manifestations in the distance dependence, presence of fundamental constants, magnitude, and sign of the Casimir interaction. Limited studies of the role of nonlinear optical properties in the interaction are also reviewed. We show that, since many new materials have greatly enhanced the nonlinear optical response, new efficient pathways for investigation of the characteristic regimes of the Casimir force need to be explored, which are expected to lead to new discoveries. Recent progress in the dynamical Casimir effect is also reviewed and we argue that nonlinear media can open up new directions in this field as well.

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Linear and nonlinear quantum Zeno and anti-Zeno effects in a nonlinear optical coupler

Physical Review A ◽

10.1103/physreva.93.022107 ◽

2016 ◽

Vol 93 (2) ◽

Cited By ~ 13

Author(s):

Kishore Thapliyal ◽

Anirban Pathak ◽

Jan Peřina

Keyword(s):

Nonlinear Optical ◽

Optical Coupler ◽

Nonlinear Quantum ◽

Linear And Nonlinear

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Linear and Nonlinear Optical Properties of Molecules

Zeitschrift für Physikalische Chemie ◽

10.1524/zpch.1995.188.part_1_2.308a ◽

1995 ◽

Vol 188 (Part_1_2) ◽

pp. 308-309

Author(s):

R. Gade

Keyword(s):

Optical Properties ◽

Nonlinear Optical ◽

Nonlinear Optical Properties ◽

Linear And Nonlinear

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Linear and Nonlinear Optical Properties of Small Silicon Clusters

10.21236/ada225495 ◽

1990 ◽

Author(s):

Tapio T. Rantala ◽

Mark I. Stockman ◽

Daniel A. Jelski ◽

Thomas F. George

Keyword(s):

Optical Properties ◽

Nonlinear Optical ◽

Nonlinear Optical Properties ◽

Silicon Clusters ◽

Linear And Nonlinear

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Linear and nonlinear optical responses in the chiral multifold semimetal RhSi

npj Quantum Materials ◽

10.1038/s41535-020-00298-y ◽

2020 ◽

Vol 5 (1) ◽

Cited By ~ 1

Author(s):

Zhuoliang Ni ◽

B. Xu ◽

M.-Á. Sánchez-Martínez ◽

Y. Zhang ◽

K. Manna ◽

...

Keyword(s):

Nonlinear Optical ◽

Chemical Potential ◽

Technological Development ◽

Optical Responses ◽

Chiral Magnetic Effect ◽

Hole Band ◽

Linear And Nonlinear ◽

Characteristic Features ◽

Topological Semimetals ◽

Terahertz Emission Spectroscopy

AbstractChiral topological semimetals are materials that break both inversion and mirror symmetries. They host interesting phenomena such as the quantized circular photogalvanic effect (CPGE) and the chiral magnetic effect. In this work, we report a comprehensive theoretical and experimental analysis of the linear and nonlinear optical responses of the chiral topological semimetal RhSi, which is known to host multifold fermions. We show that the characteristic features of the optical conductivity, which display two distinct quasi-linear regimes above and below 0.4 eV, can be linked to excitations of different kinds of multifold fermions. The characteristic features of the CPGE, which displays a sign change at 0.4 eV and a large non-quantized response peak of around 160 μA/V2 at 0.7 eV, are explained by assuming that the chemical potential crosses a flat hole band at the Brillouin zone center. Our theory predicts that, in order to observe a quantized CPGE in RhSi, it is necessary to increase the chemical potential as well as the quasiparticle lifetime. More broadly, our methodology, especially the development of the broadband terahertz emission spectroscopy, could be widely applied to study photogalvanic effects in noncentrosymmetric materials and in topological insulators in a contact-less way and accelerate the technological development of efficient infrared detectors based on topological semimetals.

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Shaping Dynamical Casimir Photons

Universe ◽

10.3390/universe7060189 ◽

2021 ◽

Vol 7 (6) ◽

pp. 189

Author(s):

Diego A. R. Dalvit ◽

Wilton J. M. Kort-Kamp

Keyword(s):

Optical Properties ◽

Lattice Structure ◽

Casimir Effect ◽

Surface Profile ◽

Microscopic Theory ◽

Space Time ◽

Quantum Vacuum ◽

Dynamical Casimir Effect ◽

Photon Pairs ◽

Time Quantum

Temporal modulation of the quantum vacuum through fast motion of a neutral body or fast changes of its optical properties is known to promote virtual into real photons, the so-called dynamical Casimir effect. Empowering modulation protocols with spatial control could enable the shaping of spectral, spatial, spin, and entanglement properties of the emitted photon pairs. Space–time quantum metasurfaces have been proposed as a platform to realize this physics via modulation of their optical properties. Here, we report the mechanical analog of this phenomenon by considering systems in which the lattice structure undergoes modulation in space and in time. We develop a microscopic theory that applies both to moving mirrors with a modulated surface profile and atomic array meta-mirrors with perturbed lattice configuration. Spatiotemporal modulation enables motion-induced generation of co- and cross-polarized photon pairs that feature frequency-linear momentum entanglement as well as vortex photon pairs featuring frequency-angular momentum entanglement. The proposed space–time dynamical Casimir effect can be interpreted as induced dynamical asymmetry in the quantum vacuum.

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