Decoherence Free Neutron Interferometry

Abstract

Perfect single-crystal neutron interferometers are adversely sensitive to environmental disturbances, particularly mechanical vibrations. The sensitivity to vibrations results from the slow velocity of thermal neutrons and the long measurement time that are encountered in a typical experiment. Consequently, to achieve a good interference solutions for reducing vibration other than those normally used in optical experiments must be explored. Here we introduce a geometry for a neutron interferometer that is less sensitive to low-frequency vibrations. This design may be compared with both dynamical decoupling methods and decoherence-free subspaces that are described in quantum information processing. By removing the need for bulky vibration isolation setups, this design will make it easier to adopt neutron interferometry to a wide range of applications and increase its sensitivity.

14 pages, 5 figures

References in corpus (5)

• Decoherence Free Subspaces for Quantum Computation
• Dynamical Decoupling of Open Quantum Systems
• Dynamical suppression of decoherence in two-state quantum systems
• Noiseless Quantum Codes
• Preserving coherence in quantum computation by pairing quantum bits

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• Prototyping method for Bragg-type atom interferometers
• Optimization of neutron diffraction from phase-gratings
• Noise Refocusing in a Five-blade Neutron Interferometer
• Coherence Optimization in Neutron Interferometry through Defocussing
• Tools for designing atom interferometers in a microgravity environment