Exploring quantum information with atoms, crystals and chips

• Grant number: 15/18834-0
• Support Opportunities: Research Projects - Thematic Grants
• Duration: February 01, 2016 - June 30, 2022
• Field of knowledge: Physical Sciences and Mathematics - Physics - Condensed Matter Physics
• Principal Investigator: Marcelo Martinelli
• Grantee: Marcelo Martinelli
• Host Institution: Instituto de Física (IF). Universidade de São Paulo (USP). São Paulo , SP, Brazil
• Pesquisadores principais: Paulo Alberto Nussenzveig
• Associated grant(s): 16/50468-7 - Nanophotonics for quantum computing and precision measurements, AP.R SPRINT
• Associated scholarship(s): 22/06571-9 - Manipulating the quantum state of light using on-chip microcavities, BP.IC; 21/14614-7 - Production of entangled states networks by an atomic medium, BP.DD; 21/04829-6 - On-chip multimode quantum correlations, BP.MS; + associated scholarships 21/04023-1 - Manipulating quantum information with atomic vapour, BP.IC; 21/02615-9 - Generation of tunable fields for optical amplifiers, BP.IC; 21/00996-5 - Quantum optics with synchrotron radiation, BP.IC; 20/09923-8 - Teleportation of non-classical states of light, BP.PD; 20/03920-7 - Teleportation of electromagnetic field states: from atoms to chips, BP.MS; 20/03606-0 - Using atoms to manipulate cluster states, BP.PD; 19/12840-0 - Creating ladder states of light with hot vapor, BP.DR; 19/17029-8 - Quantum teleportation using sideband modes: fundamentals of quantum optics and quantum information, BP.IC; 18/03155-9 - Implementing four wave mixing technology for entanglement networks, magnetometry and to explore quantum thermodynamics, BP.PD; 17/27096-9 - Using teleportation to convert quantum states of the field into the telecom C-band, BP.MS; 17/27216-4 - Studying the quantum state of the field at the threshold of the optical parametric oscillator, BP.DR; 16/04110-3 - Producing entanglement between atoms and microcavities, BP.IC; 14/27223-2 - Control of quantum information with continuous variables of light beams, BP.PD - associated scholarships

Abstract

Studies in quantum information using discrete or continuous variables of the electromagnetic field imply in the productions and control of quantum states of light, as well as the storage of these states in matter, eventually allowing the process of information using the principles of quantum mechanics. The final goal is achieving superior information processing capacity, solving problems deemed as unsolvable by classical information processing. We propose the continuity of our current work involving generation of tunable entangled light at different ranges of the electromagnetic field using optical parametric oscillators based on crystals, and its application in interfaces between atoms and silicon (Si) or silicon nitride (SiN) chips). Atomic media allow the information storage, while new techniques involving integrated optical parametric oscillators allow the scalability of quantum systems, thanks to the lithographic techniques common in electronics industry. We are aiming, finally, at the integration of different functions for quantum logical operations in a scalable manner. We may count on our current experience in generation of entangled states and control of atomic media. We are expanding our facilities focusing on testing the silicon chips produced in cooperation with M. Lipson and A. Gaeta (U. Cornell), while we study new light sources based on four wave mixing processes in atoms (A. Marino, U. Oklahoma), and the analysis of cluster states (N. Treps - LKB/ENS, and O. Pfister - U. Virginia). (AU)

Scientific publications

(5)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

RIBEIRO, BARBARA ABIGAIL FERREIRA; DE ANDRADE, RAYSSA BRUZACA; MARTINELLI, MARCELO; MARQUES, BRENO. Exploring entanglement in open cavity parametric oscillators: From triply to doubly resonant cavities. Physical Review A, v. 102, n. 2, AUG 21 2020. (14/27223-2, 15/18834-0)

RINCON CELIS, R. L.; MARTINELLI, M.. Reducing the phase noise in diode lasers. OPTICS LETTERS, v. 44, n. 13, p. 3394-3397, JUL 1 2019. (15/18834-0)

GUERRERO, A. MONTANA; NUSSENZVEIG, P.; MARTINELLI, M.; MARINO, A. M.; FLOREZ, H. M.. Quantum Noise Correlations of an Optical Parametric Oscillator Based on a Nondegenerate Four Wave Mixing Process in Hot Alkali Atoms. Physical Review Letters, v. 125, n. 8, AUG 21 2020. (18/03155-9, 17/27216-4, 15/18834-0)

BARBOSA, F. A. S.; COELHO, A. S.; CASSEMIRO, K. N.; MARTINELLI, M.; NUSSENZVEIG, P.; VILLAR, A. S.. Assumption-free measurement of the quantum state of light: Exploring the sidebands of intense fields. Physical Review A, v. 102, n. 6, DEC 7 2020. (10/08448-2, 09/52157-5, 10/52282-1, 15/18834-0)

DOMENEGUETTI, RENATO R.; ZHAO, YUN; JI, XINGCHEN; MARTINELLI, MARCELO; LIPSON, MICHAL; GAETA, ALEXANDER L.; NUSSENZVEIG, PAULO. Parametric sideband generation in CMOS-compatible oscillators from visible to telecom wavelengths. OPTICA, v. 8, n. 3, p. 316-322, MAR 20 2021. (16/50468-7, 15/18834-0)

Filed patent(s) as a result of this research project