17,745 research outputs found
Simulation of anyonic fractional statistics of Kitaev's toric model in circuit QED
Since the anyonic excitations in the Kitaev toric model are perfectly
localized quasiparticles, it is possible to generate dynamically the ground
state and the excitations of the model Hamiltonian to simulate the anyonic
interferometry. We propose a scheme in circuit QED to simulate the
interferometry. The qubit-cavity interaction can be engineered to realize
effective state control as well as the controlled dynamics of qubits, which are
sufficient to prepare the ground states, create and remove the anyonic
excitation, and simulate the anyonic interferometry. The simplicity and high
fidelity of the operations used open the very promising possibility of
simulating fractional statistics of anyons in a macroscopic material in the
near future.Comment: Typos correcte
Neuron impairment or loss in brain may be responsible for type 2 diabetes and essential hypertension
Type 2 diabetes and essential hypertension are both very common chronic diseases. Type 2 diabetes is often associated with hypertension, but the exact causes of them are unknown. Here, based on recent investigations, we will look at the pathogenesis of these two diseases in a new light
Simple unconventional geometric scenario of one-way quantum computation with superconducting qubits inside a cavity
We propose a simple unconventional geometric scenario to achieve a kind of
nontrivial multi-qubit operations with superconducting charge qubits placed in
a microwave cavity. The proposed quantum operations are insensitive not only to
the thermal state of cavity mode but also to certain random operation errors,
and thus may lead to high-fidelity quantum information processing. Executing
the designated quantum operations, a class of highly entangled cluster states
may be generated efficiently in the present scalable solid-state system,
enabling one to achieve one-way quantum computation.Comment: Accepted version with minor amendments. To appear in Phys. Rev.
Unparticle Physics Effects on D0-anti-D0 Mixing
The mixing of , and
provides a sensitive probe to explore new physics
beyond the Standard Model. The scale invariant unparticle physics recently
proposed by Georgi can induce flavor-changing neutral current and contribute to
the mixing at tree level. We investigate the unparticle effects on
and mixing. Especially, the newly observed
mixing sets the most stringent constraints on the coupling of
the unparticle to quarks.Comment: 9 pages, some errors corrected, published versio
Dynamics of Moving Average Rules in a Continuous-time Financial Market Model
Within a continuous-time framework, this paper proposes a stochastic heterogeneous agent model (HAM) of financial markets with time delays to unify various moving average rules used indiscrete-time HAMs. The time delay represents a memory length of a moving average rule indiscrete-time HAMs.Intuitive conditions for the stability of the fundamental price of the deterministic model in terms of agents' behavior parameters and memory length are obtained. It is found that an increase in memory length not only can destabilize the market price, resulting in oscillatory market price characterized by a Hopf bifurcation, but also can stabilize another wise unstable market price, leading to stability switching as the memory length increases. Numerical simulations show that the stochastic model is able to characterize long deviations of the market price from its fundamental price and excess volatility and generate most of the stylized factso bserved in financial markets.asset price; financial market behavior; heterogeneous beliefs; stochastic delay differential equations; stability; bifurcations; stylized facts
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