The Optics and Quantum Information Group (GOIQ) studies fundamental problems of optics and quantum information and their application in nanostructured solid-state systems and quantum circuits. In particular, methods for characterizing, transmitting, storing, and retrieving information contained in quantum states are theoretically investigated. 

Group members

Researchers

• Liliana Sanz de la Torre - Google Scholar
• Augusto Miguel Alcalde Milla - Google Scholar 
• Fabricio M. Souza - Google Scholar  
• José Maria Villas-Boas - Google Scholar 
• Jader de Souza Cabral - Google Scholar 
   

Research Areas

Quantum information 
Interaction of radiation with matter in solid-state systems
Engineering of interactions
Quantum electrodynamics in cavities
Generation of entanglement and control of decoherence 
Non-markovian dynamics 

List of publications

A selection of recent articles in quantum information and quantum dynamics  

Schrödinger cats coupled with cavities losses: the effect of finite and structured reservoirs. 
J Lira, L Sanz. 
Journal of the Optical Society of America B 41 (8), C254-C261). 2024

Cooper-pair beam splitter as a feasible source of entangled electrons. 
B Sharmila, FM Souza, HM Vasconcelos, L Sanz. 
Physical Review A 109 (6), 062439. 2024

Parrondo's effect in continuous-time quantum walks. 
JJ Ximenes, MA Pires, JM Villas-Bôas. 
Physical Review A 109 (3), 032417. 2024

Persistent entanglement of valley exciton qubits in transition metal dichalcogenides integrated into a bimodal optical cavity. 
Halyne S Borges, Celso AN Júnior, David S Brandão, Fujun Liu, VVR Pereira, SJ Xie, Fanyao Qu, AM Alcalde. 
Physical Review B 107 (3), 035404. 2023 

Photovoltaic efficiency at maximum power of a quantum dot molecule. 
J Lira, L Sanz, AM Alcalde 
Physics Letters A 442, 128179. 2022

Enhanced solar photocurrent using a quantum-dot molecule.
J Lira, JM Villas-Boas, L Sanz, AM Alcalde.
JOSA B 39 (8), 2047-2055. 2022

Dark-exciton giant Rabi oscillations with no external magnetic field.
V Vargas-Calderón, H Vinck-Posada, JM Villas-Boas.
Physical Review B 106 (3), 035305. 2022  

Dynamic generation of Greenberger-Horne-Zeilinger states with coupled charge qubits. 
J Nogueira, PA Oliveira, FM Souza, L Sanz. 
Physical Review A 103 (3), 032438. 2021 

Vibrational effects on the formation of quantum W states. 
HG Mendonça, FM Souza. 
Europhysics Letters 134 (4), 40001. 2021

Simulation of quantum jump in three-level atoms using photons. 
AC Cardoso, JGL Condé, B Marques, JS Cabral, S Pádua. 
Quantum Information and Measurement, W3A.4. 2021

Simulation of a quantum jump in three-level systems using photonic Gaussian modes. 
AC Cardoso, JGL Condé, B Marques, JS Cabral, S Pádua. 
Physical Review A 103 (1), 013722. 2021 

Magnetic and temperature control in the emission of a quantum dot strongly coupled to a microcavity. 
CA Jiménez-Orjuela, H Vinck-Posada, JM Villas-Bôas. 
Physica B: Condensed Matter 592, 412215. 2020 

Strong coupling of two quantum dots with a microcavity in the presence of an external and tilted magnetic field. 
CA Jiménez-Orjuela, H Vinck-Posada, JM Villas-Bôas. 
Physica B: Condensed Matter 585, 412070. 2020

Pure dephasing vs. Phonon mediated off-resonant coupling in a quantum-dot-cavity system. 
S Echeverri-Arteaga, H Vinck-Posada, JM Villas-Bôas, EA Gómez. 
Optics Communications 460, 125115. 2020