Profile
Jeff Steinhauer
Professor of physics, Technion – Israel Institute of Technology
Steinhauer uses ultracold atomic gases to study laboratory analogues of black-hole horizons. His Bose–Einstein-condensate experiments examine phonon correlations, amplification between two sonic horizons and thermal spectra. A 2016 study infers entanglement at higher energies under the stated assumption that modes at different frequencies are uncorrelated. The measured systems provide laboratory tests of horizon physics.
Affiliations
- Technion – Israel Institute of Technology, Physics Department
Channels
Bibliography
A bibliography listing does not establish authorship. Credits appear under attribution.
Published bibliography entries: 3. Showing 1–3 of 3.
Listed work
Paper · 2016
Observation of quantum Hawking radiation and its entanglement in an analogue black hole
- Jeff Steinhauer(Author)
In an atomic Bose–Einstein condensate, Jeff Steinhauer formed a sonic horizon: phonons could escape on one side but were carried inward on the other. The study measured density correlations across that horizon, identifying outgoing Hawking phonons paired with partners inside the analogue black hole. A separate population measurement was consistent with an approximately thermal spectrum; the paper does not report radiation from an astrophysical black hole. Under the stated assumption that modes at different frequencies are uncorrelated, the author inferred entanglement over a range of higher energies from the correlation spectrum and measured populations. At lower energies, the inferred entanglement weakened or vanished. An oscillating-horizon experiment produced classical correlations, and a numerical simulation supplied a further comparison.
Listed work
Paper · 2019
Observation of thermal Hawking radiation and its temperature in an analogue black hole
- Juan Ramón Muñoz de Nova(Author)
- Katrine Golubkov(Author)
- Victor I. Kolobov(Author)
- Jeff Steinhauer(Author)
Muñoz de Nova, Golubkov, Kolobov and Steinhauer measure the correlation spectrum of Hawking radiation from an analogue black hole and find it thermal, at the temperature set by the analogue surface gravity. The radiation sits in the linear dispersion regime, as for a real black hole. Inside the analogue horizon, the radiation consists only of negative-energy partner particles. The work confirms Hawking's predictions for both the value of the temperature and the thermal shape of the spectrum. Correlations between Hawking and partner particles show the analogue black hole has no analogue firewall, bearing directly on the information paradox.
Listed work
Paper · 2014
Observation of self-amplifying Hawking radiation in an analogue black-hole laser
- Jeff Steinhauer(Author)
Jeff Steinhauer builds a narrow, dilute, ultracold atomic Bose-Einstein condensate with an analogue black hole horizon and an inner horizon, as in a charged black hole. He observes Hawking radiation leaving the analogue black hole, the output of a black hole laser. A standing wave grows exponentially between the horizons, from interference between the negative-energy partners of the Hawking radiation and negative-energy particles reflected from the inner horizon. The emitted Hawking radiation is clearly visible in the density-density correlation function. The lasing mode sits at about 0.3 of the Hawking temperature. The work suggests a way to probe inside black holes: strong laser-like Hawking radiation from an astrophysical black hole would reveal an inner horizon.