On High-Efficiency Optical Communication and Key Distribution
... to generate the key. For this, we find the optimal key generation rate, and show how to construct a PPMbased coding scheme that is optimal in the limit of low photon count. Section V concludes the paper by discussing extensions to the work. II. BACKGROUND : P HOTON E FFICIENCY V IA PPM We consider ...
... to generate the key. For this, we find the optimal key generation rate, and show how to construct a PPMbased coding scheme that is optimal in the limit of low photon count. Section V concludes the paper by discussing extensions to the work. II. BACKGROUND : P HOTON E FFICIENCY V IA PPM We consider ...
On High-Efficiency Optical Communication and Key Distribution
... to generate the key. For this, we find the optimal key generation rate, and show how to construct a PPMbased coding scheme that is optimal in the limit of low photon count. Section V concludes the paper by discussing extensions to the work. II. BACKGROUND : P HOTON E FFICIENCY V IA PPM We consider ...
... to generate the key. For this, we find the optimal key generation rate, and show how to construct a PPMbased coding scheme that is optimal in the limit of low photon count. Section V concludes the paper by discussing extensions to the work. II. BACKGROUND : P HOTON E FFICIENCY V IA PPM We consider ...
Quantum Metrology Kills Rayleigh`s Criterion ∗
... “If the count degeneracy parameter is much less than 1, it is highly probable that there will be either zero or one counts in each separate coherence interval of the incident classical wave. In such a case the classical intensity fluctuations have a negligible ”bunching” effect on the photo-events, ...
... “If the count degeneracy parameter is much less than 1, it is highly probable that there will be either zero or one counts in each separate coherence interval of the incident classical wave. In such a case the classical intensity fluctuations have a negligible ”bunching” effect on the photo-events, ...
A Plausible Explanation of the double-slit Experiment in
... Abstract: A plausible non-Quantum Mechanical explanation to the double-slit experiment is considered. This is based on the view that globally energy propagates continuously as a wave while locally energy is manifested (measured or observed) in discrete units. The 1989 Tonomura 'single electron emiss ...
... Abstract: A plausible non-Quantum Mechanical explanation to the double-slit experiment is considered. This is based on the view that globally energy propagates continuously as a wave while locally energy is manifested (measured or observed) in discrete units. The 1989 Tonomura 'single electron emiss ...
Instrumental Methods of Analysis
... • Deuterating convenient way to confirm presence of particular type of bond, since frequency shift is relatively large and predictable. Chem 422 ...
... • Deuterating convenient way to confirm presence of particular type of bond, since frequency shift is relatively large and predictable. Chem 422 ...
Chapter 40 Problems
... difference through which the electrons were accelerated to give this pattern. 47. In a certain vacuum tube, electrons evaporate from a hot cathode at a slow, steady rate and accelerate from rest through a potential difference of 45.0 V. Then they travel 28.0 cm as they pass through an array of slits ...
... difference through which the electrons were accelerated to give this pattern. 47. In a certain vacuum tube, electrons evaporate from a hot cathode at a slow, steady rate and accelerate from rest through a potential difference of 45.0 V. Then they travel 28.0 cm as they pass through an array of slits ...
Quantum Physics in a Nutshell
... Remember back to the Special Theory of Relativity… • Remember how the Michelson-Morely experiment was trying to prove that “ether” existed? This was because they thought light behaved as a mechanical wave (needed a medium for the energy to travel through). • Then, once this was disproven, it was th ...
... Remember back to the Special Theory of Relativity… • Remember how the Michelson-Morely experiment was trying to prove that “ether” existed? This was because they thought light behaved as a mechanical wave (needed a medium for the energy to travel through). • Then, once this was disproven, it was th ...
Photon echo with a few photons in two-level atoms
... Keywords: photon echo, quantum memory, rare earth ion doped crystal (Some figures may appear in colour only in the online journal) ...
... Keywords: photon echo, quantum memory, rare earth ion doped crystal (Some figures may appear in colour only in the online journal) ...
AGAINST THE COPENHAGEN ORTHODOXY The
... collapse induced by the interaction with macroscopic objects) what should ultimately explain the emergence of the classical world, with its familiar properties, from the disconcerting quantum world. In that sense, several alternative interpretations to Copenhagen have tried to solve the measurement ...
... collapse induced by the interaction with macroscopic objects) what should ultimately explain the emergence of the classical world, with its familiar properties, from the disconcerting quantum world. In that sense, several alternative interpretations to Copenhagen have tried to solve the measurement ...
Quantum Computing at the Speed of Light
... progress has been made in implementations based on atomic and molecular systems (e.g. ion traps, nuclear magnetic resonance, and cavity quantum electron dynamics), a solid state architecture will ultimately be required to achieve scaling to a practical level. Semiconductor quantum dots are especiall ...
... progress has been made in implementations based on atomic and molecular systems (e.g. ion traps, nuclear magnetic resonance, and cavity quantum electron dynamics), a solid state architecture will ultimately be required to achieve scaling to a practical level. Semiconductor quantum dots are especiall ...
Preskill-PMAChairsCouncil7dec2009
... In general, there is no succinct classical description of the quantum state of a system of n qubits. But suppose, e.g., for qubits arranged in one dimension, that for any way of dividing the line into two segments, the strength of the quantum correlation (the amount of entanglement) between the two ...
... In general, there is no succinct classical description of the quantum state of a system of n qubits. But suppose, e.g., for qubits arranged in one dimension, that for any way of dividing the line into two segments, the strength of the quantum correlation (the amount of entanglement) between the two ...
Seeing a single photon without destroying it
... 24 rue Lhomond, F-75231, Paris Cedex 05, France ...
... 24 rue Lhomond, F-75231, Paris Cedex 05, France ...
Quantum Mechanics
... depends only on initial conditions of the problem The question of the distances between the planets used to be the biggest open problem in science. But we now know that it’s a complicated question that isn’t answered by the fundamental theory. ...
... depends only on initial conditions of the problem The question of the distances between the planets used to be the biggest open problem in science. But we now know that it’s a complicated question that isn’t answered by the fundamental theory. ...
Cryptography.ppt - 123SeminarsOnly.com
... polarized as a (--) photon after it passes through the filter. After their odd conversation, Alice and Bob both throw out the results from Bob's incorrect guesses. This leaves Alice and Bob with identical strings of polarized protons. It my look a little like this: -- / | | | / -- -- | | | -- / | … ...
... polarized as a (--) photon after it passes through the filter. After their odd conversation, Alice and Bob both throw out the results from Bob's incorrect guesses. This leaves Alice and Bob with identical strings of polarized protons. It my look a little like this: -- / | | | / -- -- | | | -- / | … ...
Today: Quantum mechanics
... Light comes in particles called photons. Energy of one photon is E=hf f = frequency of light ...
... Light comes in particles called photons. Energy of one photon is E=hf f = frequency of light ...
A Wave Theory of Light and Electrons
... 10. Wave Interference is not Destructive: the amplitudes of innumerable waves from all sources at all distances are superimposed at any given point in space. Wave energy is not destroyed. The EM background is more energetic than previously assumed (quantum fluctuations). 11. Electrons are Coupled to ...
... 10. Wave Interference is not Destructive: the amplitudes of innumerable waves from all sources at all distances are superimposed at any given point in space. Wave energy is not destroyed. The EM background is more energetic than previously assumed (quantum fluctuations). 11. Electrons are Coupled to ...
local pdf - Quantum Optics and Spectroscopy
... single blue photon. The experimental sequence is presented in Fig. 2b. A state-dependent force23 is realized using a bichromatic laser field resonant with the red (2n) and blue (þn) vibrational sidebands of the logic qubit. A train of short (60 ns) spectroscopy pulses, separated by 1/n, is shifted i ...
... single blue photon. The experimental sequence is presented in Fig. 2b. A state-dependent force23 is realized using a bichromatic laser field resonant with the red (2n) and blue (þn) vibrational sidebands of the logic qubit. A train of short (60 ns) spectroscopy pulses, separated by 1/n, is shifted i ...