11,671 research outputs found
Do reductions of standard hours affect employment transitions? : evidence from Chile
This study exploits the reduction of weekly working hours from 48 to 45 occurred in Chile in January 2005. We use this pure and exogenous policy change to identify the employment effects of such a policy. Our main contribution is that we overcome the problems of previous studies such as : selection between hours and employment, lack of identification strategy due to the joint implementation of policies and lack of crucial variables (like hourly wages and usual hours). Our results suggest no significant effects of a reduction of standard hours on employment transitions and a significant effect on hourly wages (i.e. wage compensation). These results are robust to several specifications
Do reductions of standard hours affect employment transitions? : Evidence from Chile
This study exploits the reduction of weekly working hours from 48 to 45 occured in Chile in January 2005. We use this pure and exogenous policy change to identify the employment effects of such a policy. Our main contribution is that we overcome the problems of previous studies such as : selection between hours and employment, lack of identification strategy due to the joint implementation of policies and lack of crucial variables (like hourly wages and usual hours). Our results suggest no significant effects of a reduction of standard hours on employment transitions and a significant effect on hourly wages (i.e. wage compensation). These results are robust to several specifiations.
Dark Bell states in tunnel-coupled spin qubits
We investigate the dynamical purification of maximally entangled electron
states by transport through coupled quantum dots. Under resonant ac driving and
coherent tunneling, even-parity Bell states perform Rabi oscillations that
decouple from the environment, leading to a dark state. The two electrons
remain spatially separated, one in each quantum dot. We propose configurations
where this effect will prove as antiresonances in transport spectroscopy
experiments.Comment: 5 pages, 4 figures + supplementary information. Published versio
Detection of single-electron heat transfer statistics
We consider a quantum dot system whose charge fluctuations are monitored by a
quantum point contact allowing for the detection of both charge and transferred
heat statistics. Our system consists of two nearby conductors that exchange
energy via Coulomb interaction. In interfaces consisting of capacitively
coupled quantum dots, energy transfer is discrete and can be measured by charge
counting statistics. We investigate gate dependent deviations away from a
charge fluctuation theorem in the presence of local temperature gradients (hot
spots). Non universal relations are found for state dependent charge counting.
A fluctuation theorem holds for coupled dot configurations with heat exchange
and no net particle flow.Comment: 6 pages, 3 figures. Published version. Corrected after erratum
publicatio
Mesoscopic Coulomb drag, broken detailed balance and fluctuation relations
When a biased conductor is put in proximity with an unbiased conductor a drag
current can be induced in the absence of detailed balance. This is known as the
Coulomb drag effect. However, even in this situation far away from equilibrium
where detailed balance is explicitly broken, theory predicts that fluctuation
relations are satisfied. This surprising effect has, to date, not been
confirmed experimentally. Here we propose a system consisting of a capacitively
coupled double quantum dot where the nonlinear fluctuation relations are
verified in the absence of detailed balance.Comment: 4 pages, 3 figure
Dynamical Coulomb blockade of thermal transport
The role of energy exchange between a quantum system and its environment is
investigated from the perspective of the Onsager conductance matrix. We
consider the thermoelectric linear transport of an interacting quantum dot
coupled to two terminals under the influence of an electrical potential and a
thermal bias. We implement in our model the effect of coupling to
electromagnetic environmental modes created by nearby electrons within the
P(E)-theory of dynamical Coulomb blockade. Our findings relate the lack of some
symmetries among the Onsager matrix coefficients with an enhancement of the
efficiency at maximum power and the occurrence of the heat rectification
phenomenon.Comment: 9 pages, 7 figure
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