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High-visibility nonclassical interference between pure heralded single photons and weak coherent photons
High-visibility pure heralded single photons weak coherent photons
2010/11/9
We present an experiment of nonclassical interference between a pure heralded single-photon state and a weak coherent state. Our experiment is the first to demonstrate that spectrally pure single phot...
The Dirac-Moshinsky oscillator coupled to an external field and its connection to quantum optics
Dirac-Moshinsky oscillator coupled external field connection to quantum optics
2010/11/8
The Dirac-Moshinsky oscillator is an elegant example of an exactly solvable quantum relativistic model that under certain circumstances can be mapped onto the Jaynes-Cummings model in quantum optics. ...
Are quantum walks the saviour of optical quantum computing?
quantum optical quantum computing
2010/11/8
Quantum walks have emerged as an interesting candidate for the implementation of quantum information processing protocols. Optical implementations of quantum walks have been demonstrated by various g...
Fock-state view of weak-value measurements and implementation with photons and atomic ensembles
Fock-state view weak-value measurements implementation photons atomic ensembles
2010/11/5
Weak measurements in combination with post-selection can give rise to a striking amplification effect (related to a large "weak value"). We show that this effect can be understood by viewing the initi...
Non-classical correlation of cascaded photon pairs emitted from quantum dot
Non-classical correlation cascaded photon pairs emitted quantum dot
2010/11/5
We studied the quantum correlation between the photon pairs generated by biexciton cascade decays of self-assembled quantum dots, and determined the temperature behavior associated with so-called sudd...
Optically Levitating Dielectrics in the Quantum Regime: Theory and Protocols
Optically Levitating Dielectrics Quantum Regime Theory Protocols
2010/11/5
We provide a general quantum theory to describe the coupling of light with the motion of a dielectric object inside a high finesse optical cavity. In particular, we derive the total Hamiltonian of the...
Emission spectra and intrinsic optical bistability in a two-level medium
Emission spectra intrinsic optical bistability two-level medium
2010/11/5
Scattering of resonant radiation in a dense two-level medium is studied theoretically with account for local field effects and renormalization of the resonance frequency. Intrinsic optical bistability...
Simulating quantum-optical phenomena with cold atoms in optical lattices
quantum-optical phenomena cold atoms optical lattices
2010/11/4
We propose a scheme involving cold atoms trapped in optical lattices to observe different phenomena traditionally linked to quantum-optical systems. The basic idea consists of connecting the trapped a...
Analyzing Correlations for spin-1/2 particles and Singlet pairs
Analyzing Correlations spin-1/2 particles Singlet pairs
2010/10/29
We review the computation of correlations of successive projections of the spin onto axes for spin-1/2 particles and EPRB pairs (in the Singlet state). We assume forms of Realism (at least as general ...
All Optical Switch of Vacuum Rabi Oscillations: The Ultrafast Quantum Eraser
All Optical Switch Vacuum Rabi Oscillations Ultrafast Quantum Eraser
2010/10/29
We study the all-optical time-control of the strong coupling between a single cascade three-level quantum emitter and a microcavity. We find that only specific arrival-times of the control pulses succ...
Quantum Optical Version of Classical Optical Transformations and Beyond
Dirac’s symbolic method IWOP technique entangled state of continuum variables
2010/10/29
By the newly developed technique of integration within an ordered product (IWOP) of operators, we explore quantum optical version of classical optical transformations such as optical Fresnel transform...
Fractional Hadamard transform with continuous variables in the context of quantum optics
Fractional Hadamard transform continuous variables context of quantum optics
2010/10/29
We introduce the quantum fractional Hadamard transform with continuous variables. It is found that the corresponding quantum fractional Hadamard operator can be decomposed into a single-mode fractiona...
Photon-photon gates in Bose-Einstein condensates
Photon-photon gates Bose-Einstein condensates
2010/10/29
It has recently been shown that light can be stored in Bose-Einstein condensates for over a second. Here we propose a method for realizing a controlled phase gate between two stored photons. The phot...
On the classical theory of molecular optical activity
classical theory molecular optical activity
2010/10/21
The basic principles of classical and semi-classical theories of molecular optical activity are
discussed. These theories are valid for dilute solutions of optically active organic molecules. It is s...
Interference and complementarity for two-photon hybrid entangled states
Interference complementarity two-photon hybrid entangled states
2010/10/20
In this work we generate two-photon hybrid entangled states (HES), where the polarization of one photon is entangled with the transverse spatial degree of freedom of the second photon. The photon pair...