scholarly journals Quantum detector tomography of superconducting nanostrip photon-number-resolving detector

2021 ◽  
Author(s):  
Mamoru Endo ◽  
Tatsuki Sonoyama ◽  
Mikihisa Matsuyama ◽  
Fumiya Okamoto ◽  
Shigehito Miki ◽  
...  
Keyword(s):  
Photon Number ◽  
Quantum Detector

A versatile quantum detector based on homodyne detection with photon-number resolution

2019 ◽  
Author(s):  
G.S. Thekkadath ◽  
D.S. Phillips ◽  
J. Bulmer ◽  
W.R. Clements ◽  
A. Eckstein ◽  
...  
Keyword(s):  
Photon Number ◽  
Homodyne Detection ◽  
Quantum Detector

scholarly journals Quantum Calibration of Photon-Number-Resolving Detectors Based on Multi-pixel Photon Counters

2019 ◽  
Vol 9 (13) ◽  
pp. 2638 ◽  
Author(s):  
Cai ◽  
Chen ◽  
Chen ◽  
Ma ◽  
Xu ◽  
...  
Keyword(s):  
Positive Operator ◽  
Photon Number ◽  
Avalanche Photodiode ◽  
Spatial Multiplexing ◽  
Wigner Functions ◽  
Photon Counter ◽  
Quantum Properties ◽  
Quantum Detector ◽  
Conventional Methods ◽  
Positive Operator Valued Measure

In this paper, we reconstructed the positive operator-valued measure (POVM) of a photon-number-resolving detector (PNRD) based on a multi-pixel photon counter (MPPC) by means of quantum detector tomography (QDT) at 791 nm and 523 nm, respectively. MPPC is a kind of spatial-multiplexing PNRD with a silicon avalanche photodiode (Si-APD) array as the photon receiver. Experimentally, the quantum characteristics of MPPC were calibrated at 2 MHz at two different wavelengths. The POVM elements were given by QDT. The fidelity of the reconstructed POVM elements is higher than 99.96%, which testifies that the QDT is reliable to calibrate MPPC at different wavelengths. With QDT and associated Wigner functions, the quantum properties of MPPC can be calibrated more directly and accurately in contrast with those conventional methods of modeling detectors.

Receiving phase-keyed optical signals via quantum detector

1999 ◽  
Vol 5 (5-6) ◽  
pp. 71-76
Author(s):  
A.S. Mazmanishvili ◽  
◽  
Keyword(s):  
Optical Signals ◽  
Quantum Detector

scholarly journals Probing higher order correlations of the photon field with photon number resolving avalanche photodiodes

2011 ◽  
Vol 19 (14) ◽  
pp. 13268 ◽  
Author(s):  
J. F. Dynes ◽  
Z. L. Yuan ◽  
A. W. Sharpe ◽  
O. Thomas ◽  
A. J. Shields
Keyword(s):  
Avalanche Photodiodes ◽  
Photon Number ◽  
Higher Order ◽  
Photon Field

scholarly journals Procedure via cross-Kerr nonlinearities for encoding single logical qubit information onto four-photon decoherence-free states

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Jino Heo ◽  
Seong-Gon Choi
Keyword(s):  
Quantum Information ◽  
Quantum Information Processing ◽  
Photon Number ◽  
Optical Devices ◽  
Quantum Bus ◽  
Reliable Procedure ◽  
Optical Gates ◽  
Photon Loss ◽  
Decoherence Effect ◽  
Logical Qubit

AbstractWe propose a photonic procedure using cross-Kerr nonlinearities (XKNLs) to encode single logical qubit information onto four-photon decoherence-free states. In quantum information processing, a decoherence-free subspace can secure quantum information against collective decoherence. Therefore, we design a procedure employing nonlinear optical gates, which are composed of XKNLs, quantum bus beams, and photon-number-resolving measurements with linear optical devices, to conserve quantum information by encoding quantum information onto four-photon decoherence-free states (single logical qubit information). Based on our analysis in quantifying the affection (photon loss and dephasing) of the decoherence effect, we demonstrate the experimental condition to acquire the reliable procedure of single logical qubit information having the robustness against the decoherence effect.

scholarly journals Optimal time-resolved photon number distribution reconstruction of a cavity field by maximum likelihood

2012 ◽  
Vol 14 (11) ◽  
pp. 115007 ◽  
Author(s):  
C Sayrin ◽  
I Dotsenko ◽  
S Gleyzes ◽  
M Brune ◽  
J M Raimond ◽  
...  
Keyword(s):  
Maximum Likelihood ◽  
Photon Number ◽  
Optimal Time ◽  
Cavity Field ◽  
Time Resolved ◽  
Number Distribution ◽  
Photon Number Distribution

A NEW GENERALIZED JAYNES–CUMMINGS MODEL BASED ON TWO-MODE PHOTON NUMBER-DIFFERENCE AND OPERATIONAL PHASE

2003 ◽  
Vol 17 (04) ◽  
pp. 153-158 ◽  
Author(s):  
HONG-YI FAN ◽  
HAI-LIANG LU
Keyword(s):  
Photon Number ◽  
Nonlinear Process ◽  
Model Based ◽  
Operational Phase

A new generalized Jaynes–Cummings model based on two-mode photon number-difference and operational phase is presented. The excitation of the atom is proportional to the net variation of the competion of two modes of photons in some nonlinear process. The corresponding Hamiltonian is diagonalized by virtue of the supersymmetric transform.

Sign in / Sign up

Export Citation Format

Share Document