搜索结果: 1-15 共查到“物理学 coherent states”相关记录43条 . 查询时间(0.07 秒)
Fractals, coherent states and self-similarity induced noncommutative geometry
self-similarity fractals squeezed coherent states noncommutative geometry dissipation
2012/6/30
The self-similarity properties of fractals are studied in the framework of the theory of entire analytical functions and the $q$-deformed algebra of coherent states. Self-similar structures are relate...
Quaternionic vector coherent states for spin-orbit interactions
Quaternionic vector coherent states spin-orbit interactions Mathematical Physics
2012/4/23
This work addresses the study of two-dimensional electron gas in a perpendicular magnetic field in the presence of both Rashba and Dresselhaus spin-orbit (SO) interactions, with effective Zeeman coupl...
On the Fermi Function of Squeezed Coherent States
Fermi Function Squeezed Coherent States Quantum Physics
2011/10/9
Abstract: Fermi observed in 1930 that the state of a quantum system may be defined in two different (but equivalent) ways, namely by its wavefunction $\Psi$ or by a certain function $g_F$ on phase spa...
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...
Increasing Average Fidelity by Using Non-Maximally Entangled Resource in Teleportation of Superposed Coherent States
Quantum teleportation Superposed coherent state Entangled coherent state Average Fidelity
2011/8/17
Abstract: We consider the problem of teleporting superposed coherent state using non-maximally entangled coherent state as quantum channel and study the effect of entanglement over quality of teleport...
Cross-Kerr nonlinearity between continuous-mode coherent states and single photons
Cross-Kerr nonlinearity continuous-mode coherent states single photons
2013/7/3
Weak cross-Kerr nonlinearities between single photons and coherent states are the basis for many applications in quantum-information processing. These nonlinearities have so far mainly been discussed ...
We construct a class of coherent spin-network states that capture proprieties of curved space-times of the Friedmann-Lamaˆıtre-Robertson-Walker type on which they are peaked.
The coherent states for a set of quadratic Hamiltonians in the trap regime are constructed.
A matrix technique which allows to identify directly the creation and annihilation
operators will be prese...
Quantum process tomography with coherent states
Quantum process tomography coherent states
2010/10/20
We develop an enhanced technique for characterizing quantum optical processes based on probing unknown quantum processes only with coherent states. Our method substantially improves the original propo...
Discrimination of binary coherent states using a homodyne detector and a photon number resolving detector
photon number resolving homodyne detector
2010/3/10
We investigate quantum measurement strategies capable of discriminating two coherent states probabilistically with significantly smaller error probabilities than can be obtained using non- probabilist...
Unambiguous identification of coherent states II: Multiple resources
Unambiguous identification coherent states II Multiple resources
2010/4/9
We consider unambiguous identification of coherent states of electromagnetic field. In particular, we study possible generalizations of an optical setup proposed in M. Sedl\'{a}k {\it et al.}, Phys. R...
Photon-added one-photon and two-photon nonlinear coherent states
Photon one-photon two-photon nonlinear coherent states
2010/10/13
From the photon-added one-photon nonlinear coherent states a†m| , fi, we introduce a new type of nonlinear coherent states with negative values of m.The nonlinear coherent states corresponding t...
Coherent states, displaced number states and Laguerre polynomial states for su(1,1) Lie algebra
Coherent states displaced number states Laguerre polynomial states su(1,1) Lie algebra
2010/10/13
The ladder operator formalism of a general quantum state for su(1,1)ie algebra is obtained. The state bears the generally deformed oscillator algebraic structure. It is found that the Perelomov’s cohe...
Entangled SU(2) and SU(1,1) coherent states are developed as superpositions
of multiparticle SU(2) and SU(1,1) coherent states. In certain cases, these are
coherent states with respect to generalize...