搜索结果: 1-14 共查到“量子力学 Measurements”相关记录14条 . 查询时间(0.062 秒)
A new response mode of quantum systems, repeatedly interrogated by quantum probe particles,is introduced: quantum entrainment. Quantum entrainment is shown to arise in an interferometric scheme for th...
What is credible and what is incredible in the measurements of the Casimir force
What is credible what is incredible the measurements Casimir force
2010/11/4
We comment on progress in measurements of the Casimir force and discuss what is the actual reliability of different experiments. In this connection a more rigorous approach to the usage of such concep...
Quantum measurement of a system can change its mean energy, as well as entropy. A selective measurement (classical or quantum) can be used as a "Maxwell's demon" to power a single-temperature heat eng...
Short Multi-Prover Quantum Proofs for SAT without Entangled Measurements
Entangled Measurements Short Multi-Prover Quantum
2010/11/8
BellQMA protocols are a subclass of multi-prover quantum Merlin-Arthur protocols in which the verifier is restricted to perform nonadaptive,unentangled measurements on the quantum states received from...
Device-Independent Quantum Key Distribution with Commuting Measurements
Device-Independent Quantum Key Distribution ommuting Measurements
2010/10/19
We consider quantum key distribution in the device-independent scenario, i.e., where the
legitimate parties do not know (or trust) the exact specification of their apparatus. We show
how secure key ...
Ultimate quantum bounds on mass measurements with a nano-mechanical oscillator
Ultimate quantum bounds mass measurements nano-mechanical oscillator
2010/10/21
Nano-mechanical resonators have a large potential as sensors of very small adsorbed masses,
down to the atomic level and beyond. Here I establish the fundamental lower bound on the mass
that can be ...
Parity Measurements in Quantum Optical Metrology
Parity Measurements Quantum Optical Metrology
2010/4/9
We investigate the utility of parity detection to achieve Heisenberg-limited phase estimation for optical interferometry. We consider the parity detection with several input states that have been show...
Quantum Imaging beyond the Diffraction Limit by Optical Centroid Measurements
Quantum Imaging Diffraction Limit Optical Centroid Measurements
2010/4/12
I propose a quantum imaging method that can beat the Rayleigh-Abbe diffraction limit and achieve de Broglie resolution without requiring a multiphoton absorber as the detector. Using the same non-clas...
Sub-wavelength position measurements with running wave driving fields
Sub-wavelength position measurements running wave driving fields
2010/4/12
A scheme for sub-wavelength position measurements of quantum particles is discussed, which operates with running-wave laser fields as opposed to standing wave fields proposed in previous setups. The p...
Multi-qubit entanglement engineering via projective measurements
Multi-qubit entanglement engineering projective measurements
2010/4/9
So far, various multi-photon entangled states have been observed experimentally by using different experimental set-ups. Here, we present a scheme to realize many SLOCC-inequivalent states of three an...
Quantum Mechanics of Successive Measurements with Arbitrary Meter Coupling
Quantum Mechanics Successive Measurements Arbitrary Meter Coupling
2010/4/9
We study successive measurements of two observables using von Neumann's measurement model. The two-pointer correlation for arbitrary coupling strength allows retrieving the initial system state. We re...
Continuous Quantum Nondemolition Measurements of a Particle
in Electromagnetic and Gravitational Fields
continuous quantum nondemolition measurements restricted path integral
2007/8/15
2005Vol.44No.3pp.455-458DOI:
Continuous Quantum Nondemolition Measurements of a Particle
in Electromagnetic and Gravitational Fields
ZHU Chun-Hua1 and ZHA Chao-Zheng1,2
...
JILA Measurements Recast Usual View of Elusive Force
quantum mechanics nanomachines atom chips
2007/2/8
Feb. 9, 2007，Physicists at JILA have demonstrated that the warmer a surface is, the stronger its subtle ability to attract nearby atoms, a finding that could affect the design of devices that rely on ...
Do the precise measurements of the Casimir force agree with the expectations?
precise measurements Casimir force
2010/10/13
An upper limit on the Casimir force is found using the dielectric functions of perfect crystalline materials which depend only on well defined material constants. The force measured with the atomic fo...