1,607 research outputs found
Algebraic Integration of Sigma Model Field Equations
We prove that the dualization algebra of the symmetric space coset sigma
model is a Lie algebra and we show that it generates an appropriate adjoint
representation which enables the local integration of the field equations
yielding the first-order ones.Comment: 27p
Quantum-dot-spin single-photon interface
Using background-free detection of spin-state-dependent resonance
fluorescence from a single-electron charged quantum dot with an efficiency of
0:1%, we realize a single spin-photon interface where the detection of a
scattered photon with 300 picosecond time resolution projects the quantum dot
spin to a definite spin eigenstate with fidelity exceeding 99%. The bunching of
resonantly scattered photons reveals information about electron spin dynamics.
High-fidelity fast spin-state initialization heralded by a single photon
enables the realization of quantum information processing tasks such as
non-deterministic distant spin entanglement. Given that we could suppress the
measurement back-action to well below the natural spin-flip rate, realization
of a quantum non-demolition measurement of a single spin could be achieved by
increasing the fluorescence collection efficiency by a factor exceeding 20
using a photonic nanostructure
Single production of excited electrons at future e^-e^+, ep and pp colliders
We analyzed the potential of the LC with TeV, LCLHC
based ep collider with TeV and LHC with TeV to
search for excited electrons through transition magnetic type couplings with
gauge bosons. The signal and corresponding backgrounds
are studied in detail.Comment: 11 pages, 11 figures, 3 table
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