| Born: 1954, USA |
Academic Qualifications:1986, S.U.N.Y. Stony Brook, USA
MA 1981, U.C. Berkeley, USA
BA 1975, Princeton U., USA
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Academic Positions:
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Research Interests:
Fundamental aspects and effects of quantum mechanics; quantum measurements; quantum information; mesoscopic and cold-atom physics; path integrals; field theory |
Research Projects:
"High-N00N" states and atom interferometry; noise of superconducting currents; "weak" values in mesoscopic physics; new axioms for quantum mechanics |
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Abstracts of Current Research:- D. Rohrlich, O. Zarchin, M. Heiblum, D. Mahalu and V. Umansky, "Controlled dephasing of a quantum dot: from coherent to sequential tunneling", Phys. Rev. Lett. 98 (2007) 096803.: Resonant tunneling through two identical potential barriers renders them transparent, as particle trajectories interfere coherently. Here we realize resonant tunneling in a quantum dot (QD), and show that detection of electron trajectories renders the dot nearly insulating. Measurements were made in the integer quantum Hall regime, with the tunneling electrons in an inner edge channel coupled to detector electrons in a neighboring outer channel, which was partitioned. Quantitative analysis indicates that just a few detector electrons completely dephase the QD.
- D. Rohrlich, Y. Neiman, Y. Japha and R. Folman, "Interference swapping in scattering from a nonlocal quantum target", Phys. Rev. Lett. 96 (2006) 173601.: We describe a new and distinctive interferometry in which a probe particle scatters off a superposition of locations of a single free target particle. Probe particles scattering off a single free "mirror" (in one dimension) or a single free "slit" (in two dimensions) can "swap" interference with the superposed target states. The condition for interference is loss of orthogonality of the target states and reduces, in simple examples, to transfer of orthogonality from target to probe states. We analyze experimental parameters and conditions necessary for interference to be observed.
- S. Popescu and D. Rohrlich, "Thermodynamics and the measure of entanglement", Phys. Rev. A56 (1997) Rapid Comm. R3319.: We point out formal correspondences between thermodynamics and entanglement. By applying them to previous work, we show that entropy of entanglement is the unique measure of entanglement for pure states.
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Publications:- D. Rohrlich, O. Zarchin, M. Heiblum, D. Mahalu and V. Umansky. Controlled dephasing of a quantum dot: from coherent to sequential tunneling Phys. Rev. Lett. 98: 096803 (2007)
- O. Zarchin, Y. Chung, M. Heiblum, D. Rohrlich and V. Umansky. Electron bunching in transport through quantum dots in a high magnetic field Phys. Rev. Lett. 98: 066801 (2007)
- D. Rohrlich, Y. Neiman, Y. Japha and R. Folman. Interference swapping in scattering from a nonlocal quantum target Phys. Rev. Lett. 96: 173601 (2006)
- Y. Aharonov and D. Rohrlich. (book), Quantum Paradoxes: Quantum Theory for the Perplexed, (Weinheim: Wiley-VCH): (2005)
- D. Rohrlich. Mesoscopic interferometers for electron waves Optics and Spectroscopy 99: 503 (2005)
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Books:- Yakir Aharonov, Daniel Rohrlich, Quantum Paradoxes: Quantum Theory for the Perplexed, 289, Wiley-VCH, 2005
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| Keywords: quantum effects, nonlocality, quantum information, decoherence, path integrals. |
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Phones:
- Phone: 6479408
- Fax: 6479264
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