scholarly journals Review of Recent Experimental Progress in Foundations of Quantum Mechanics and Quantum Information Achieved in Parametric Downconversion Experiments at IENGF

2005 ◽  
Vol 99 (2) ◽  
pp. 170 ◽  
Author(s):  
M. Genovese
Keyword(s):  
Quantum Mechanics ◽  
Quantum Information ◽  
Foundations Of Quantum Mechanics

TOWARD A FULL RECONSTRUCTION OF DENSITY MATRIX BY ON/OFF MEASUREMENTS

2009 ◽  
Vol 07 (supp01) ◽  
pp. 27-32 ◽  
Author(s):  
G. BRIDA ◽  
M. GENOVESE ◽  
M. GRAMEGNA ◽  
P. TRAINA ◽  
E. PREDAZZI ◽  
...  
Keyword(s):  
Quantum Mechanics ◽  
Quantum Information ◽  
Density Matrix ◽  
Foundations Of Quantum Mechanics ◽  
Quantum Tomography ◽  
Local Oscillator ◽  
Homodyne Detection ◽  
Short Pulses ◽  
Phase Measurements ◽  
Full Reconstruction

The knowledge of density matrix is fundamental for several applications, ranging from quantum information to the foundations of quantum mechanics and quantum optics. Nevertheless, quantum tomography based on homodyne detection is a rather complicated technique when applied to short pulses in photocounting regime. In this paper, we present an experimental work addressed to test an innovative scheme for a full reconstruction of the density matrix by using on/off detection coupled to phase measurements respect to a local oscillator.

Quantum theory from quantum information: the purification route

2013 ◽  
Vol 91 (6) ◽  
pp. 475-478 ◽  
Author(s):  
Giulio Chiribella ◽  
Xiao Yuan
Keyword(s):  
Quantum Mechanics ◽  
Information Processing ◽  
Quantum Theory ◽  
Quantum Information ◽  
Foundations Of Quantum Mechanics ◽  
Mathematical Structure ◽  
Mathematical Language ◽  
Standard Quantum ◽  
Information Theoretic

Quantum information provided a new angle on the foundations of quantum mechanics, where the emphasis is placed on operational tasks pertaining to information-processing and computation. In this spirit, several authors have proposed that the mathematical structure of quantum theory could (and should) be rebuilt from purely information-theoretic principles. Here we review the particular route proposed by D'Ariano, Perinotti, and one of the authors (Chiribella et al. Phys. Rev. A, 84, 012311 (2011)), with the purpose of giving a synopsis of the informational principles therein, along with a translation of those principles into the mathematical language of standard quantum theory.

scholarly journals RECENT EXPERIMENTS PERFORMED AT "CARLO NOVERO" LAB AT INRIM ON QUANTUM INFORMATION AND FOUNDATIONS OF QUANTUM MECHANICS

2007 ◽  
Vol 05 (01n02) ◽  
pp. 265-272 ◽  
Author(s):  
G. BRIDA ◽  
N. ANTONIETTI ◽  
M. GRAMEGNA ◽  
L. KRIVITSKY ◽  
F. PIACENTINI ◽  
...  
Keyword(s):  
Quantum Mechanics ◽  
Quantum Information ◽  
Recent Work ◽  
Foundations Of Quantum Mechanics

In this paper we present some recent work performed at "Carlo Novero" lab on quantum information and foundations of quantum mechanics.

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