Generation of tunable quantum entanglement via nonlinearity symmetry breaking in semiconductor metasurfaces
arXiv:2409.10845 · doi:10.1126/sciadv.adu4133
Abstract
Tunable biphoton quantum entanglement generated from nonlinear processes is highly desirable for cutting-edge quantum technologies, yet its tunability is substantially constrained by the symmetry of material nonlinear tensors. Here, we overcome this constraint by introducing symmetry-breaking in nonlinear polarization to generate optically tunable biphoton entanglement at picosecond speeds. Asymmetric optical responses have made breakthroughs in classical applications like non-reciprocal light transmission. We now experimentally demonstrate the nonlinear asymmetry response for biphoton entanglement using a semiconductor metasurface incorporating [110] InGaP nano-resonators with structural asymmetry. We realize continuous tuning of polarization entanglement from near-unentangled states to a Bell state. This tunability can also extend to produce tailored hyperentanglement. Furthermore, our nanoscale entanglement source features an ultra-high coincidence-to-accidental ratio of , outperforming existing semiconductor flat optics by two orders of magnitude. Introducing asymmetric nonlinear response in quantum metasurfaces opens new directions for tailoring on-demand quantum states and beyond.
arXiv comment27 pages, 4 figures
References in corpus (44)
- Entanglement of Formation of an Arbitrary State of Two Qubits
- On the Measurement of Qubits
- Satellite-to-ground quantum key distribution
- Significant-loophole-free test of Bell's theorem with entangled photons
- Photonic quantum information processing: a concise review
- Wavelength-Multiplexed Quantum Networks with Ultrafast Frequency Combs
- Nonreciprocal Photon Blockade
- Entanglement-based wavelength multiplexed quantum communication network
- Imaging with quantum states of light
- A quantum access network
- Ultrathin quantum light source enabled by a nonlinear van der Waals crystal with vanishing interlayer-electronic-coupling
- Resonant Semiconductor Metasurfaces for Generating Complex Quantum States
- Nonreciprocal Optomechanical Entanglement against Backscattering Losses
- Measurement-device-independent quantum key distribution over untrustful metropolitan network
- Large Area Metalenses: Design, Characterization, and Mass Manufacturing
- Quantum Tomography
- Spatially entangled photon-pairs from lithium niobate nonlocal metasurfaces
- Spontaneous photon-pair generation at the nanoscale
- A high-flux source of polarization-entangled photons from a periodically-poled KTP parametric downconverter
- Minireview on Disordered Optical Metasurfaces
- Passive Bias-Free Nonreciprocal Metasurfaces Based on Nonlinear Quasi-Bound States in the Continuum
- Generation and characterization of multimode quantum frequency combs
- Microscale generation of entangled photons without momentum conservation
- Asymmetric parametric generation of images with nonlinear dielectric metasurfaces
- Ultrafast switching of photonic entanglement
- Enhanced generation of non-degenerate photon-pairs in nonlinear metasurfaces
- Polarization state of a biphoton: quantum ternary logic
- Tuneable entangled photon pair generation in a liquid crystal
- Demonstration of active routing of entanglement in a multi-user network
- Nanosecond electro-optic switching of a liquid crystal
- InGaP quantum nanophotonic integrated circuits with 1.5% nonlinearity-to-loss ratio
- Nonmaximally entangled states can be better for multiple linear optical teleportation
- Nonreciprocal Superradiant Phase Transitions and Multicriticality in a Cavity QED System
- Efficient quantum key distribution scheme with nonmaximally entangled states
- Polarization engineering of entangled photons from a lithium niobate nonlinear metasurface
- Tunable generation of entangled photons in a nonlinear directional coupler
- Engineering Quantum Light Sources with Flat Optics
- Quantum Imaging Using Spatially Entangled Photon Pairs from a Nonlinear Metasurface
- Ultrafast time-division demultiplexing of polarization-entangled photons
- InGaP integrated photonics platform for broadband, ultra-efficient nonlinear conversion and entangled photon generation
- Quantum Pair Generation in Nonlinear Metasurfaces with Mixed and Pure Photon Polarizations
- Real-time observation of picosecond-timescale optical quantum entanglement toward ultrafast quantum information processing
- Demonstration of a plasmonic nonlinear pseudo-diode
- Optimization of metasurfaces for lasing with symmetry constraints on the modes
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- Enhanced photon-pair generation from a van der Waals metasurface
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- Hyperentanglement in Nanophotonic Systems with Discrete Rotational Symmetry
- Chiral lasing via broken parity-time symmetry in bound-state-in-the-continuum metasurfaces