
Born:
1954, USA


Academic
Qualifications:


Academic Position:


Research Interests:
Fundamental
aspects and effects of quantum mechanics; quantum measurements; quantum
information; coldatom physics; BoseEinstein condensates; path
integrals; field theory


Research Projects:
Interferometry
of clocks; "weak" values in theory and in atomic physics;
a new axiomatic basis for quantum mechanics; retrocausality in and
beyond quantum mechanics; see also "John Templeton Foundation grant"
and "Israel
Science Foundation grant" (listed below)


Abstracts of Current
Research:

D.
Rohrlich, Strongerthanquantum
bipartite correlations violate relativistic causality in the classical
limit.
[Submitted to Phys.
Rev. Lett.] Superquantum
("PRbox") correlations, though designed to respect relativistic
causality, violate relativistic
causality in the classical limit. Generalizing to all
strongerthanquantum bipartite correlations, I derive Tsirelson's
bound from the axioms of nonlocality, relativistic causality
and
the existence of a classical limit. This derivation of Tsirelson's
bound does not assume quantum mechanics yet suggests how Hilbert space
is implicit in quantum correlations. See also
PRbox correlations have no classical limit.

Y.
Aharonov, S. Popescu, D. Rohrlich and P. Skrzypczyk, Quantum Cheshire
Cats.
New J. Phys. 15
(2013) 113015. In this paper we present a
quantum Cheshire Cat. In a
pre
and postselected experiment we find the Cat in one place, and its grin
in another. The Cat is a photon, while the grin is its circular
polarization. See also T. Denkmayr et al.,
Observation of a
quantum Cheshire Cat in a matterwave interferometer experiment.
Nat.
Commun. 5, 4492 (2014).
 Y.
Aharonov, S. Popescu and D. Rohrlich, A
paradox of nonlocal energy conservation. [In
preparation] A
superposition of lowenergy photon eigenstates may oscillate, in some
region, at a frequency corresponding to a much higherenergy photon.
Relativistic causality then implies that a detector in that
region, at that time, may find a highenergy photon there. The
resolution of this paradox involves both weak values and modular
variables.


Some recent publications:

G. Hetzroni and D. Rohrlich, Protective
measurements and the PBR
theorem. In Protective
Measurement: Towards a New
Understanding of Quantum Mechanics, ed. Shan Gao, to appear.

V.
Sokolovsky, D. Rohrlich and B. Horovitz, Trapping
neutral atoms in the field
of a vortex pinned
by a superconducting nanodisk. Phys.
Rev. A89
(2014) 053422.
 D. Rohrlich, PRbox correlations have no classical limit,
in Quantum Theory: A TwoTime Success Story [Yakir
Aharonov Festschrift], eds.
D. C. Struppa and J. M. Tollaksen (Milan: Springer), 2013, pp. 205211.


Keywords:
quantum effects, nonlocality, quantum information, decoherence, path
integrals




Phones:
 Phone:
086479408, 025637840, 025637173
 Fax:
086479264




Last updated: 28 August
2014
