Researchers at the City University of New York’s Advanced Science Research Center (CUNY ASRC) have demonstrated a stationary tabletop circuit that amplifies electromagnetic waves by emulating the energy-extraction physics associated with rotating black holes. The ring-shaped network of rapidly modulated electronic resonators achieved 7.8 dB of gain without any moving parts. The findings were published on July 8 in the peer-reviewed journal Nature.
Key Details
The experiment reproduces, in an electronic platform, a mechanism analogous to how energy can be extracted from a spinning black hole. By carefully modulating a ring of coupled resonators, the team created conditions that boost incident electromagnetic signals, delivering measurable amplification in a compact, stationary setup.
How the System Works
The device consists of a ring-shaped network of electronic resonators whose properties are rapidly and periodically modulated. This engineered modulation mimics the energy-extraction dynamics associated with rotating black holes, enabling incoming electromagnetic waves to gain energy as they circulate through the network. Crucially, the approach requires no mechanical rotation or moving components, relying instead on precisely timed electronic control.
Results and Significance
The system produced 7.8 dB of gain—evidence that the black hole–inspired mechanism can be realized on a tabletop with standard electronic components. The result highlights a pathway to achieve controllable wave amplification in compact devices, with potential relevance for signal processing and other electromagnetic applications.
Publication
The research was published on July 8 in Nature by a team at the CUNY Advanced Science Research Center.