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Solid light - Wikipedia

From Wikipedia, the free encyclopedia

Solid light, or hard light, is a hypothetical material consisting of light in a solidified state.

It has been theorized that solid light could exist.^[1]^[2] Some experiments claim to have created solid photonic matter or molecules by inducing strong interaction between photons.^[3]^[4]^[5] Potential applications of solid light could include logic gates for quantum computers^[4] and room-temperature superconductor development.^[3]

Experiments

Photons, the particles that make up forms of electromagnetic radiation like light, do not normally interact with one another, but may be made to interact in a nonlinear medium.^[6]

The MIT-Harvard Center for Ultracold Atoms conducted experiments in the 2010s. Single photons were fired from weak lasers into a dense cloud of rubidium cooled to near absolute zero. The speed of light in the cloud was about 100,000 times slower than in a vacuum. Within the cloud, photons lost energy and gained mass. The conditions allowed photons to attract and bind to other photons, and exit the cloud as molecules. Reportedly, photon pairs were observed in 2013, and triplets in 2018.^[4]^[5]

Fiction

Solid light appears in several video game franchises, including Halo, Portal, and Overwatch. In Portal 2, sunlight is used to create "hard light bridges", which act as solid semi-transparent walkways or barriers.^[7] In Overwatch, the fictional Vishkar Corporation uses solid light as a construction material.^[7] In Halo, solid light is the foundation of Forerunner weapons and many of their utilitarian devices like retractable bridges.^{[citation needed]}

Solid holograms appear many times in the TV show Star Trek.^[7]^[8] In Red Dwarf, the character Rimmer is a hologram who obtains a "hard light drive", allowing him to become tangible.^[7] In the animated show Steven Universe, several main characters are aliens who have physical forms made out of light, with a gemstone as the only material part of their body.^[9]^[10]

In DC Comics' Green Lantern, the various Lantern Corps use solid light constructs.^[7] In Marvel Comics properties, "hard light" manifests in many forms. For example, Ms. Marvel utilizes photon blasts to generate concussive force.^[11] The X-Men's Danger Room also utilizes hard light constructs in its simulations.

References

^ University of Melbourne (7 May 2007). "Could Light Behave As A Solid? A New Theory". ScienceDaily. Retrieved 30 January 2016.
^ Raftery, J.; Sadri, D.; Schmidt, S.; Türeci, H. E.; Houck, A. A. (8 September 2014). "Observation of a Dissipation-Induced Classical to Quantum Transition". Physical Review X. 4 (3): 031043. arXiv:1312.2963. Bibcode:2014PhRvX...4c1043R. doi:10.1103/physrevx.4.031043. ISSN 2160-3308.
^ ^a ^b Freeman, David (16 September 2014). "Scientists Say They've Created A Freaky New Form Of Light". The Huffington Post. Retrieved 30 January 2016.
^ ^a ^b ^c Reuell, Peter (27 September 2013). "Seeing light in a new way". Harvard Gazette. Retrieved 30 January 2016.
^ ^a ^b Chu, Jennifer (15 February 2018). "Physicists create new form of light". MIT News. Retrieved 2 January 2021.
^ Firstenberg, Ofer; Peyronel, Thibault; Liang, Qi-Yu; Gorshkov, Alexey V.; Lukin, Mikhail D.; Vuletić, Vladan (25 September 2013). "Attractive photons in a quantum nonlinear medium" (PDF). Nature. 502 (7469). Springer Science and Business Media LLC: 71–75. Bibcode:2013Natur.502...71F. doi:10.1038/nature12512. hdl:1721.1/91605. ISSN 0028-0836. PMID 24067613. S2CID 1699899.
^ ^a ^b ^c ^d ^e "Hard Light". TV Tropes. Retrieved 2023-05-24.
^ "Meet the Man Behind the Holodeck, Part 1". 25 July 2023.
^ The Classroom Gems: What Are Gems? | Steven Universe | Cartoon Network, retrieved 2024-02-05
^ "Steven Universe S1E24 "An Indirect Kiss" / Recap". TV Tropes. Retrieved 2024-02-05.
^ "Captain Marvel (Carol Danvers) Powers, Abilities, Villains | Marvel". www.marvel.com. Retrieved 2024-02-13.

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