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@ARTICLE{Heeg:220110,
      author       = {Heeg, K. P. and Ott, C. and Schumacher, D. and Wille, H.-C.
                      and Röhlsberger, R. and Pfeifer, T. and Evers, J.},
      title        = {{I}nterferometric {P}hase {D}etection at {X}-{R}ay
                      {E}nergies via {F}ano {R}esonance {C}ontrol},
      journal      = {Physical review letters},
      volume       = {114},
      number       = {20},
      issn         = {1079-7114},
      address      = {College Park, Md.},
      publisher    = {APS},
      reportid     = {PUBDB-2015-02104},
      pages        = {207401},
      year         = {2015},
      abstract     = {Modern x-ray light sources promise access to structure and
                      dynamics of matter in largely unexplored spectral regions.
                      However, the desired information is encoded in the light
                      intensity and phase, whereas detectors register only the
                      intensity. This phase problem is ubiquitous in
                      crystallography and imaging and impedes the exploration of
                      quantum effects at x-ray energies. Here, we demonstrate
                      phase-sensitive measurements characterizing the quantum
                      state of a nuclear two-level system at hard x-ray energies.
                      The nuclei are initially prepared in a superposition state.
                      Subsequently, the relative phase of this superposition is
                      interferometrically reconstructed from the emitted x rays.
                      Our results form a first step towards x-ray quantum state
                      tomography and provide new avenues for structure
                      determination and precision metrology via x-ray Fano
                      interference.},
      cin          = {FS-PE},
      ddc          = {550},
      cid          = {I:(DE-H253)FS-PE-20120731},
      pnm          = {6212 - Quantum Condensed Matter: Magnetism,
                      Superconductivity (POF3-621) / 6G3 - PETRA III (POF3-622)},
      pid          = {G:(DE-HGF)POF3-6212 / G:(DE-HGF)POF3-6G3},
      experiment   = {EXP:(DE-H253)P-P01-20150101},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000354969900009},
      pubmed       = {pmid:26047250},
      doi          = {10.1103/PhysRevLett.114.207401},
      url          = {https://bib-pubdb1.desy.de/record/220110},
}