搜索结果: 1-15 共查到“superposition”相关记录20条 . 查询时间(0.078 秒)
Quantum Attacks without Superposition Queries: the Offline Simon Algorithm
Simon's algorithm classical queries symmetric cryptography
2019/6/4
In symmetric cryptanalysis, the model of superposition queries has lead to surprising results, with many constructions being broken in polynomial time thanks to Simon's period-finding algorithm. But t...
Non-linear magneto-optic and self polarization rotation by superposition of states
Non-linear magneto-optic self polarization rotation superposition of states Optics
2012/4/24
We report the observation of enhanced magneto-optic rotation as the coherent superposition of different hyperfine states is established in an atomic sample. The polarization rotation near the two phot...
Superposition Attacks on Cryptographic Protocols
cryptographic protocols / quantum protocols superposition attacks
2012/3/27
Attacks on cryptographic protocols are usually modeled by allowing an adversary to ask queries to an oracle. Security is then defined by requiring that as long as the queries satisfy some constraint, ...
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...
Nonlinear superposition of direct and inverse cascades in two-dimensional turbulence forced at large and small scales
Nonlinear superposition direct inverse cascades two-dimensional turbulence
2011/8/4
Abstract: We inquire the properties of 2d Navier-Stokes turbulence simultaneously forced at small and large scales. The background motivation comes by observational results on atmospheric turbulence. ...
Superposition states of ultracold bosons in rotating rings with a weak potential barrier
Superposition states ultracold bosons weak potential barrier
2010/11/23
We study ultracold bosons in a one-dimensional rotating ring lattice with a weak potential barrier well below unit filling. Due to the potential barrier the eigenstates are superpositions of different...
Fluid Dynamic Limit to the Riemann Solutions of Euler Equations: I. Superposition of rarefaction waves and contact discontinuity
Fluid Dynamic the Riemann Solutions of Euler Equations
2010/11/15
Fluid dynamic limit to compressible Euler equations from compressible Navier-Stokes equations and Boltzmann equation has been an active topic with limited success so far. In this paper, we consider t...
Necessity of Superposition of Macroscopically Distinct States for Quantum Computational Speedup
Necessity of Superposition Macroscopically Distinct States Quantum Computational Speedup
2010/10/21
For quantum computation, we investigate the conjecture that superposition of macroscopically
distinct states is necessary for large quantum speedup. Although this conjecture was supported for a circu...
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 + rˆa† of field annihilation and creation operator acting on continuous variable systems and propose its application for quantum state engineering...
Spacetime rejects superposition due to discreteness
rejects superposition discrete spacetime quantum collapse
2010/3/18
The existence of a minimum size of spacetime is generally considered as an indispensable element in a complete theory of quantum gravity. In this essay we will analyze one of its implications for qua...
Mode Superposition Transient Dynamic Analysis for Dental Implants with Stress-absorbing Elements:A Finite Element Analysis
Transient dynamic analysis Dental implants Damping
2009/9/14
The purpose of this study was to analyze the dynamic behavior of a dental implant with a stress-absorbing element, using dynamic analysis. Two model types, stress-absorbing model with a resilient stre...
Decoherence, Einselection and Classicality of a Macroscopic Quantum Superposition generated by Quantum Cloning
Decoherence Einselection and Classicality Macroscopic Quantum Superposition Quantum Cloning
2010/4/8
The high resilience to de-coherence shown by a recently discovered Macroscopic Quantum Superposition (MQS) generated by a quantum injected optical parametric amplifier (QI-OPA) and involving a number ...
EXTREMAL BEHAVIOUR INMODELS OF SUPERPOSITION OF RANDOM VARIABLES
extreme value nonstationarity extremal index superposition of point processes
2009/2/26
Let X(i) ={Xgi(n)}n1, i=1, 2, be sequences of random variables, where {gi(n)}n1
are disjoint and strictly increasing sequences of integer numbers such that {g1(n)}n1 ∪
{g2(n)}n1 = N. Using super...
SUPERPOSITION OPERATORS BETWEEN VARIOUS ALMOST PERIODIC FUNCTION SPACES AND APPLICATIONS
almost periodic function superposition operator evolution equation differential equation asymptotically almost periodic function almost automorphic function
2008/11/28
We study the superposition operators (also called Nemytskii operators) between spaces
of almost periodic functions with values in a complete metric space or in a Banach
space. We establish new resul...