Entangling extreme ultraviolet photons through strong field pair
generation
- URL: http://arxiv.org/abs/2309.16466v1
- Date: Thu, 28 Sep 2023 14:27:39 GMT
- Title: Entangling extreme ultraviolet photons through strong field pair
generation
- Authors: Jamison Sloan, Alexey Gorlach, Matan Even Tzur, Nicholas Rivera, Oren
Cohen, Ido Kaminer, Marin Solja\v{c}i\'c
- Abstract summary: Entangled photon pairs are a vital resource for quantum information.
We show that strongly driven systems can become versatile sources of entangled photon pairs at high frequencies.
The light produced by SFPG exhibits attosecond Hong-Ou-Mandel correlations, and can be leveraged as a source of heralded single photon attosecond pulses.
- Score: 1.7092734777791396
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: Entangled photon pairs are a vital resource for quantum information,
computation, and metrology. Although these states are routinely generated at
optical frequencies, sources of quantum of light are notably lacking at extreme
ultraviolet (XUV) and soft X-ray frequencies. Here, we show that strongly
driven systems used for high harmonic generation (HHG) can become versatile
sources of entangled photon pairs at these high frequencies. We present a
general theory of photon pair emission from non-perturbatively driven systems,
which we refer to as "strong field pair generation" (SFPG). We show that
strongly driven noble gases can generate thousands of entangled pairs per shot
over a large XUV bandwidth. The emitted pairs have distinctive properties in
angle and frequency, which can be exploited to discriminate them from the
background HHG signal. We connect SFPG theory to the three-step-model of HHG,
showing that this pair emission originates from the impact of high frequency
vacuum fluctuations on electron recombination. The light produced by SFPG
exhibits attosecond Hong-Ou-Mandel correlations, and can be leveraged as a
source of heralded single photon attosecond pulses. Our findings aid ongoing
efforts to propel quantum optics into the XUV and beyond.
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