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Photonic quantum metrology enables the measurement of physical parameters with precision surpassing classical limits by using quantum states of light. However, generating states providing a large metrological advantage is hard because standard probab
Externí odkaz:
http://arxiv.org/abs/2411.07929
Autor:
Heras, A. Muñoz de las, Tabares, C., Schneider, J. T., Tagliacozzo, L., Porras, D., González-Tudela, A.
Publikováno v:
Phys. Rev. Research 6, 013299 (2024)
Photonic quantum metrology harnesses quantum states of light, such as NOON or Twin-Fock states, to measure unknown parameters beyond classical precision limits. Current protocols suffer from two severe limitations that preclude their scalability: the
Externí odkaz:
http://arxiv.org/abs/2309.09841
Publikováno v:
Phys. Rev. A 102, 013709 (2020)
The exchange of off-resonant propagating photons between distant quantum emitters induces coherent interactions among them. The range of such interactions, and whether they are accompanied by dissipation, depends on the photonic energy dispersion, it
Externí odkaz:
http://arxiv.org/abs/2003.07854
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Autor:
Andrade, F. R. S., da Silva, E. L., Marinho, A. D., Oliveira, A. C. X., Sánchez-Porras, D., Bermejo-Casares, F., Montenegro, R. C., Carriel, V., Monteiro, H. S. A., Jorge, R. J. B.
Publikováno v:
Archives of Toxicology; Oct2024, Vol. 98 Issue 10, p3503-3512, 10p
Autor:
Bermudez, A., Porras, D.
Publikováno v:
New J. Phys. 17 103021 (2015)
We introduce a scheme that combines photon-assisted tunneling by a moving optical lattice with strong Hubbard interactions, and allows for the quantum simulation of paradigmatic quantum many-body models. We show that, in a certain regime, this quantu
Externí odkaz:
http://arxiv.org/abs/1504.00128
Publikováno v:
Phys. Rev. Lett. 111, 243602 (2013)
We study the time and space resolved dynamics of a qubit with an Ohmic coupling to propagating 1D photons, from weak coupling to the ultrastrong coupling regime. A nonperturbative study based on Matrix Product States (MPS) shows the following results
Externí odkaz:
http://arxiv.org/abs/1307.3870
Autor:
Ivanov, P. A., Porras, D.
We show that the quasi-adiabatic evolution of a system governed by the Dicke Hamiltonian can be described in terms of a self-induced quantum many-body metrological protocol. This effect relies on the sensitivity of the ground state to a small symmetr
Externí odkaz:
http://arxiv.org/abs/1305.5730
Autor:
Gonzalez-Tudela, A., Porras, D.
Publikováno v:
Phys. Rev. Lett. 110, 080502 (2013)
Implementations of solid state quantum optics provide us with devices where qubits are placed at fixed positions in photonic or plasmonic one dimensional waveguides. We show that solely by controlling the position of the qubits and with the help of a
Externí odkaz:
http://arxiv.org/abs/1209.4730
Publikováno v:
Phys. Rev. A 85, 022511 (2012)
We show an analogy between static quantum emitters coupled to a single mode of a quantum field and accelerated Unruh-DeWitt detectors. We envision a way to simulate a variety of relativistic quantum field settings beyond the reach of current computat
Externí odkaz:
http://arxiv.org/abs/1109.0209