搜索结果: 1-15 共查到“量子力学 2-photon”相关记录27条 . 查询时间(0.359 秒)
Quantum Filtering (Quantum Trajectories) for Systems Driven by Fields in Single Photon States and Superposition of Coherent States
Quantum Trajectory Superposition of Coherent States Single Photon States
2011/10/8
Abstract: We derive the stochastic master equations, that is to say, quantum filters, and master equations for an arbitrary quantum system probed by a continuous-mode bosonic input field in two types ...
Quantum Filtering for Systems Driven by Fields in Single Photon States and Superposition of Coherent States using Non-Markovian Embeddings
quantum filtering continuous-mode single photon states continuous-mode superpositions of coherent states quantum stochastic processes
2011/10/8
Abstract: The purpose of this paper is to determine quantum master and filter equations for systems coupled to fields in certain non-classical continuous-mode states. Specifically, we consider two typ...
Quantum Master Equation and Filter for Systems Driven by Fields in a Single Photon State
Quantum Master Equation Filter Single Photon State Quantum Physics
2011/10/8
Abstract: The aim of this paper is to determine quantum master and filter equations for systems coupled to continuous-mode single photon fields. The system and field are described using a quantum stoc...
On some special cases of the Entropy Photon-Number Inequality
the Entropy Photon-Number Inequality Quantum Physics Information Theory
2011/10/8
Abstract: We show that the Entropy Photon-Number Inequality (EPnI) holds where one of the input states is the vacuum state and for several candidates of the other input state that includes the cases w...
Quantum mechanical photon-count formula derived by entangled state
Quantum mechanical photon-count formula derived entangled state
2010/11/9
By introducing the thermo entangled state representation, we derived four new photocount distribution formulas for a given density operator of light field. It is shown that these new formulas, which ...
Observation of Young's Double-Slit Interference with the Three-Photon N00N State
Observation Young's Double-Slit Interference Three-Photon N00N State
2010/10/21
Spatial interference of quantum mechanical particles exhibits a fundamental feature of quantum
mechanics. A two-mode entangled state of N particles known as N00N state can give rise to nonclassical i...
Quantum state engineering by a coherent superposition of photon subtraction and addition
Quantum state engineering coherent superposition photon subtraction
2010/10/19
We study a coherent superposition tˆa + rˆa224; of field annihilation and creation operator acting on continuous variable systems and propose its application for quantum state engineering...
Quantum Interference between a Single-Photon Fock State and a Coherent State
Quantum Interference Single-Photon Fock State Coherent State
2010/10/19
ports of a beam splitter when a single-photon Fock state and a coherent state are incident on
the input ports. The output states turn out to be a statistical mixture between a displaced Fock state an...
Spin-squeezing and Dicke state preparation through single-photon heterodyne measurement
Dicke state single-photon heterodyne measurement
2010/3/10
We investigate the collapse of a coherent superposition of two-level atoms induced by a single-photon heterodyne quantum non-demolition (QND) measurement, and show that such a measurement process lead...
Quantum state engineering, purification, and number resolved photon detection with high finesse optical cavities
Quantum state high finesse optical
2010/3/10
We propose and analyze a multi-functional setup consisting of high finesse optical cavities, beam splitters, and phase shifters. The basic scheme projects arbitrary photonic two-mode input states onto...
Experimental Quantum Teleportation and Multi-Photon Entanglement via Interfering Narrowband Photon Sources
Experimental Quantum Teleportation Multi-Photon Entanglement Narrowband Photon
2010/4/7
In this letter, we report a realization of synchronization-free quantum teleportation and narrowband three-photon entanglement through interfering narrowband photon sources. Since both the single-phot...
Nonclassical 2-photon interference with separate intrinsically narrowband fibre sources
2-photon narrowband fibre
2010/4/9
In this paper, we demonstrate a source of photon pairs based on four-wave-mixing in photonic crystal fibres. Careful engineering of the phase matching conditions in the fibres enables us to create pho...
Pure single photon generation by type-I PDC with backward-wave amplification
Pure single photon type-I PDC backward-wave amplification
2010/4/8
We explore a promising method of generating pure heralded single photons. Our approach is based on parametric downconversion in a periodically-poled waveguide. However, unlike conventional downconvers...
Smooth quantum-classical transition in photon subtraction and addition processes
Smooth quantum-classical transition photon subtraction addition processes
2010/4/9
Recently Parigi et al. [Science 317, 1890 (2007)] implemented experimentally the photon subtraction and addition processes from/to a light field in a conditional way, when the required operations were...
Robust photon-spin entangling gate using a quantum-dot spin in a microcavity
Robust photon-spin entangling gate quantum-dot spin microcavity
2010/4/9
Semiconductor quantum dots (known as artificial atoms) hold great promise for solid-state quantum networks and quantum computers. To realize a quantum network, it is crucial to achieve light-matter en...