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

Control of Spin Blockade by AC Magnetic Fields in Triple Quantum Dots

We analyze coherent spin phenomena in triple quantum dots in triangular configuration under crossed DC and AC magnetic fields. In particular, we discuss the interplay between Aharonov-Bohm current oscillations, coherent electron trapping and spin blockade under electron spin resonance conditions. We demonstrate that, for certain field frequencies, AC magnetic fields induce an antiresonant behavior in the current, allowing for both removal and restoration of entangled spin blockaded states by tuning the AC field frequency. Our theoretical predictions indicate how to manipulate spin qubits in a triangular quantum dot array.Comment: 4 pages, 5 figure