Magnetic Quantum-Phase Control between Two Entangled Macroscopic Nuclear Ensembles

Abstract

Heralded generation and manipulation of quantum entanglement between two macroscopic and spatially separated crystals at room temperature is theoretically studied. We show that by combining an x-ray parametric down-conversion source and x-ray interferometry with nuclear resonant scattering techniques, two macroscopic crystals hosting Mössbauer nuclei located each on an interferometer arm can be entangled for few tens of nanoseconds. The coherence time of the entanglement state can be prolonged up to values comparable to the lifetime of a single nuclear excited state, on the order of hundred nanoseconds. A non-mechanical magnetic control of the quantum phase between the two spatially separated entangled nuclear crystals is put forward.

5 pages, 1 figure and 1 table

References in corpus (7)

• The Quantum Internet
• Heralded Entanglement between Atomic Ensembles: Preparation, Decoherence, and Scaling
• Tunable sub-luminal propagation of narrowband x-ray pulses
• Single-Photon Entanglement in the keV Regime via Coherent Control of Nuclear Forward Scattering
• Coherent storage and phase modulation of single hard x-ray photons using nuclear excitons
• Broadband high-resolution x-ray frequency combs
• Transformation of a single photon field into bunches of pulses

Cited by in corpus (5)

• Ab initio quantum models for thin-film x-ray cavity QED
• Quantum enhanced X-ray detection
• Inverse design of artificial two-level systems with Mössbauer nuclei in thin-film cavities
• Generation of short hard X-ray pulses of tailored duration using a Mössbauer source
• Excitation of narrow x-ray transitions in thin-film cavities by focused pulses