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Thermal baths as quantum resources: More friends than foes?
(IOP Publishing, 2015-11-06)
In this article we argue that thermal reservoirs (baths) are potentially useful resources in processes involving atoms interacting with quantized electromagnetic fields and their applications to quantum technologies. One ...
Enhancement of quantum speed limit time due to cooperative effects in multilevel systems
(IOP Publishing, 2015-08)
Deriving minimum evolution times is of paramount importance in quantum mechanics. Bounds on the speed of evolution are given by the so called quantum speed limit (QSL). In this work we use quantum optimal control methods ...
Remote state preparation of a photonic quantum state via quantum teleportation
(Springer Verlag Berlín, 2014-06)
We demonstrate an experimental realization of remote state preparation via the quantum teleportation algorithm, using an entangled photon pair in the polarization degree of freedom as the quantum resource. The input state ...
Optimal control of a charge qubit in a double quantum dot with a Coulomb impurity
(Elsevier Science, 2017-02)
We study the efficiency of modulated external electric pulses to produce efficient and fast charge localization transitions in a two-electron double quantum dot. We use a configuration interaction method to calculate the ...
Controlled high-fidelity navigation in the charge stability diagram of a double quantum dot
(Iop Publishing, 2015-03)
We propose an efficient control protocol for charge transfer in a double quantum dot. We consider numerically a two-dimensional model system, where the quantum dots are subjected to time-dependent electric fields ...
Continuous dynamical decoupling and decoherence-free subspaces for qubits with tunable interaction
(2019-05-01)
Protecting quantum states from the decohering effects of the environment is of great importance for the development of quantum computation devices and quantum simulators. Here, we introduce a continuous dynamical decoupling ...
Template-based mapping of reversible circuits to IBM quantum computers
(2022-04-01)
In order to make the most of the increasing computational power of recently developed quantum computers, it is crucial to perform an efficient mapping of a given quantum circuit that realizes the desired quantum algorithm ...
Quantum thermodynamics aspects with a thermal reservoir based on PT -symmetric Hamiltonians
(2021-08-01)
We present results concerning aspects of quantum thermodynamics under the background of non-Hermitian quantum mechanics for the dynamics of a quantum harmonic oscillator. Since a better control over the parameters in quantum ...
Coherent control of localization, entanglement, and state superpositions in a double quantum dot with two electrons
(American Physical Society, 2009-01)
We have recently proposed a quantum control method based on the knowledge of the energy spectrum as a function of an external control parameter. So far, our method has been applied to connect the ground state to target ...
Computational advantage from the quantum superposition of multiple temporal orders of photonic gates
(American Physical Society, 2021)