In a revolutionary breakthrough published in Nature Photonics (May 2024), physicists from the University of Rostock (Germany) and University of Birmingham (UK) successfully created light from the quantum vacuum—essentially, from "nothing."
This discovery is based on the dynamical Casimir effect, a quantum phenomenon where rapidly changing boundaries or conditions can convert virtual particles into real photons.
Normally, vacuum is considered empty, but quantum theory reveals it's filled with fluctuating virtual particles.
By modulating the refractive index of a material in time, the researchers mimicked a moving boundary condition at nearly the speed of light—without any physical motion—causing these virtual photons to materialize into actual light.
This feat marks the first time light has been generated purely through time-dependent modulation, without spatial changes or moving mirrors.
It offers profound implications for quantum optics, vacuum engineering, and could lay the groundwork for energy harvesting from vacuum fields, ultrafast light sources, and quantum computing.
This discovery is based on the dynamical Casimir effect, a quantum phenomenon where rapidly changing boundaries or conditions can convert virtual particles into real photons.
Normally, vacuum is considered empty, but quantum theory reveals it's filled with fluctuating virtual particles.
By modulating the refractive index of a material in time, the researchers mimicked a moving boundary condition at nearly the speed of light—without any physical motion—causing these virtual photons to materialize into actual light.
This feat marks the first time light has been generated purely through time-dependent modulation, without spatial changes or moving mirrors.
It offers profound implications for quantum optics, vacuum engineering, and could lay the groundwork for energy harvesting from vacuum fields, ultrafast light sources, and quantum computing.
In a revolutionary breakthrough published in Nature Photonics (May 2024), physicists from the University of Rostock (Germany) and University of Birmingham (UK) successfully created light from the quantum vacuum—essentially, from "nothing."
This discovery is based on the dynamical Casimir effect, a quantum phenomenon where rapidly changing boundaries or conditions can convert virtual particles into real photons.
Normally, vacuum is considered empty, but quantum theory reveals it's filled with fluctuating virtual particles.
By modulating the refractive index of a material in time, the researchers mimicked a moving boundary condition at nearly the speed of light—without any physical motion—causing these virtual photons to materialize into actual light.
This feat marks the first time light has been generated purely through time-dependent modulation, without spatial changes or moving mirrors.
It offers profound implications for quantum optics, vacuum engineering, and could lay the groundwork for energy harvesting from vacuum fields, ultrafast light sources, and quantum computing.


