Johannes Majer

No.99 Xiupu Road, Pudong District, Shanghai, China

My research is focused on hybrid quantum systems. In particular my interest is aimed at coupling superconducting quantum circuits to spins systems such as nitrogen-vacancy defects in diamond. This solid-state quantum optics platform allows us to study fundamental quantum effects such a as superradiance and bistability. Furthermore, this coupled system allows us to realize quantum technologies, such as microwave photon detectors and frequency transducers.

Related Publications

  • Angerer, A., Streltsov, K., Astner, T., Putz, S., Sumiya, H., Onoda, S., Isoya, J., Munro, W., Nemoto, K., Schmiedmayer, org & Majer, J. Superradiant emission from colour centres in diamond. Nature Physics 14, 1168-1172 (2018).
  • Astner, T., Gugler, J., Angerer, A., Wald, S., Putz, S., Mauser, N., Trupke, M., Sumiya, H., Onoda, S., Isoya, J., Schmiedmayer, J., Mohn, P. & Majer, J. Solid-state electron spin lifetime limited by phononic vacuum modes. Nature Materials 17, 313-317 (2018).
  • Putz, S., Angerer, A., Krimer, D., Glattauer, R., Munro, W., Rotter, S., Schmiedmayer, J. & Majer, J. Spectral hole burning and its application in microwave photonics. Nature Photonics 11, 36-39 (2017).
  • Angerer, A., Putz, S., Krimer, D., Astner, T., Zens, M., Glattauer, R., Streltsov, K., Munro, W., Nemoto, K., Rotter, S., Schmiedmayer, J. & Majer, J. Ultralong relaxation times in bistable hybrid quantum systems. Science Advances 3, e1701626 (2017).
  • Astner, T., Nevlacsil, S., Peterschofsky, N., Angerer, A., Rotter, S., Putz, S., Schmiedmayer, J. & Majer, J. Coherent Coupling of Remote Spin Ensembles via a Cavity Bus. Physical Review Letters 118, 140502 (2017).
  • Nöbauer, T., Angerer, A., Bartels, B., Trupke, M., Rotter, S., Schmiedmayer, J., Mintert, F. & Majer, J. Smooth Optimal Quantum Control for Robust Solid-State Spin Magnetometry. Physical Review Letters 115, 190801 (2015).
  • Putz, S., Krimer, D., R., A. uss, Valookaran, A., T., obauer, Schmiedmayer, J., Rotter, S. & Majer, J. Protecting a spin ensemble against decoherence in the strong-coupling regime of cavity QED. Nature Physics 10, 720-724 (2014).
  • R., A. uss, Koller, C., No¨bauer, T., Putz, S., Rotter, S., Sandner, K., Schneider, S., M., S. ock, Steinhauser, G., Ritsch, H., Schmiedmayer, J. & Majer, J. Cavity QED with magnetically coupled collective spin states. Physical Review Letters 107, 1-5 (2011).
  • Majer, J., Chow, J., Gambetta, J., Koch, J., Johnson, B., Schreier, J., Frunzio, L., Schuster, D., Houck, A., Wallraff, A., Blais, A., Devoret, M., Girvin, S. & Schoelkopf, R. Coupling superconducting qubits via a cavity bus. Nature 449, 443-447 (2007).
  • Wallraff1, A., Schuster1, D., Blais1, A., Frunzio1, L., Huang1, R. -, Majer, J., Kumar1, S. & Schoelkopf1, S. Strong coupling of a single photon to a superconducting qubit using circuit quantum electrodynamics. Nature 431, 159-162 (2004).