



@article {1530,
	title = {Nonequilibrium quantum fluctuations of a dispersive medium: Spontaneous  emission, photon statistics, entropy generation, and stochastic motion
},
	journal = {Physical Review A},
	volume = {90},
	year = {2014},
	month = {2014/7/16},
	abstract = {  We study the implications of quantum fluctuations of a dispersive medium,
under steady rotation, either in or out of thermal equilibrium with its
environment. A rotating object exhibits a quantum instability by dissipating
its mechanical motion via spontaneous emission of photons, as well as internal
heat generation. Universal relations are derived for the radiated energy and
angular momentum as trace formulas involving the object{\textquoteright}s scattering matrix. We
also compute the quantum noise by deriving the full statistics of the radiated
photons out of thermal and/or dynamic equilibrium. The (entanglement) entropy
generation is quantified, and the total entropy is shown to be always
increasing. Furthermore, we derive a Fokker-Planck equation governing the
stochastic angular motion resulting from the fluctuating back-reaction
frictional torque. As a result, we find a quantum limit on the uncertainty of
the object{\textquoteright}s angular velocity in steady rotation. Finally, we show in some
detail that a rotating object drags nearby objects, making them spin parallel
to its axis of rotation. A scalar toy model is introduced in the first part to
simplify the technicalities and ease the conceptual complexities; a detailed
discussion of quantum electrodynamics is presented in the second part.
},
	doi = {10.1103/PhysRevA.90.012515},
	url = {http://arxiv.org/abs/1401.0701v1},
	author = {Mohammad F. Maghrebi and Robert L. Jaffe and Mehran Kardar}
}
@article {1528,
	title = {Spontaneous emission by rotating objects: A scattering approach},
	journal = {Physical Review Letters},
	volume = {108},
	year = {2012},
	month = {2012/6/7},
	abstract = {  We study the quantum electrodynamics (QED) vacuum in the presence of a body
rotating along its axis of symmetry and show that the object spontaneously
emits energy if it is lossy. The radiated power is expressed as a general trace
formula solely in terms of the scattering matrix, making an explicit connection
to the conjecture of Zel{\textquoteright}dovich [JETP Lett. 14, 180 (1971)] on rotating
objects. We further show that a rotating body drags along nearby objects while
making them spin parallel to its own rotation axis.
},
	doi = {10.1103/PhysRevLett.108.230403},
	url = {http://arxiv.org/abs/1202.1485v2},
	author = {Mohammad F. Maghrebi and Robert L. Jaffe and Mehran Kardar}
}
@article {1531,
	title = {Casimir force between sharp-shaped conductors},
	journal = {Proceedings of the National Academy of Sciences},
	volume = {108},
	year = {2011},
	month = {2011/04/11},
	pages = {6867 - 6871},
	abstract = {  Casimir forces between conductors at the sub-micron scale cannot be ignored
in the design and operation of micro-electromechanical (MEM) devices. However,
these forces depend non-trivially on geometry, and existing formulae and
approximations cannot deal with realistic micro-machinery components with sharp
edges and tips. Here, we employ a novel approach to electromagnetic scattering,
appropriate to perfect conductors with sharp edges and tips, specifically to
wedges and cones. The interaction of these objects with a metal plate (and
among themselves) is then computed systematically by a multiple-scattering
series. For the wedge, we obtain analytical expressions for the interaction
with a plate, as functions of opening angle and tilt, which should provide a
particularly useful tool for the design of MEMs. Our result for the Casimir
interactions between conducting cones and plates applies directly to the force
on the tip of a scanning tunneling probe; the unexpectedly large temperature
dependence of the force in these configurations should attract immediate
experimental interest.
},
	doi = {10.1073/pnas.1018079108},
	url = {http://arxiv.org/abs/1010.3223v1},
	author = {Mohammad F. Maghrebi and Sahand Jamal Rahi and Thorsten Emig and Noah Graham and Robert L. Jaffe and Mehran Kardar}
}
@article {1529,
	title = {Implications of the Babinet Principle for Casimir Interactions},
	journal = {Physical Review D},
	volume = {84},
	year = {2011},
	month = {2011/9/1},
	abstract = {  We formulate the Babinet Principle (BP) as a relation between the scattering
amplitudes for electromagnetic waves, and combine it with multiple scattering
techniques to derive new properties of Casimir forces. We show that the Casimir
force exerted by a planar conductor or dielectric on a self- complementary
perforated planar mirror is approximately half that on a uniform mirror
independent of the distance between them. The BP suggests that Casimir edge
effects are anomalously small, supporting results obtained earlier in special
cases. Finally, we illustrate how the BP can be used to estimate Casimir forces
between perforated planar mirrors.
},
	doi = {10.1103/PhysRevD.84.061701},
	url = {http://arxiv.org/abs/1103.5395v1},
	author = {Mohammad F. Maghrebi and Ronen Abravanel and Robert L. Jaffe}
}
