Search Results - "Schafermeier, Clemens"

Deterministic phase measurements exhibiting super-sensitivity and super-resolution by Schäfermeier, Clemens, Ježek, Miroslav, Madsen, Lars S., Gehring, Tobias, Andersen, Ulrik L.

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Continuous-variable quantum computing on encrypted data by Marshall, Kevin, Jacobsen, Christian S., Schäfermeier, Clemens, Gehring, Tobias, Weedbrook, Christian, Andersen, Ulrik L.

“…The ability to perform computations on encrypted data is a powerful tool for protecting a client’s privacy, especially in today’s era of cloud and distributed…”
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Quantum enhanced optomechanical magnetometry by Li, Bei-Bei, Bílek, Jan, Hoff, Ulrich B., Madsen, Lars S., Forstner, Stefan, Prakash, Varun, Schäfermeier, Clemens, Gehring, Tobias, Bowen, Warwick P., Andersen, Ulrik L.

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Quantum enhanced feedback cooling of a mechanical oscillator using nonclassical light by Schäfermeier, Clemens, Kerdoncuff, Hugo, Hoff, Ulrich B., Fu, Hao, Huck, Alexander, Bilek, Jan, Harris, Glen I., Bowen, Warwick P., Gehring, Tobias, Andersen, Ulrik L.

“…Laser cooling is a fundamental technique used in primary atomic frequency standards, quantum computers, quantum condensed matter physics and tests of…”
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Centimeter-scale suspended photonic crystal mirrors by Moura, João P, Norte, Richard A, Guo, Jingkun, Schäfermeier, Clemens, Gröblacher, Simon

“…Demand for lightweight, highly reflective and mechanically compliant mirrors for optics experiments has seen a significant surge. In this aspect, photonic…”
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Nanodiamonds carrying silicon-vacancy quantum emitters with almost lifetime-limited linewidths by Jantzen, Uwe, Kurz, Andrea B, Rudnicki, Daniel S, Schäfermeier, Clemens, Jahnke, Kay D, Andersen, Ulrik L, Davydov, Valery A, Agafonov, Viatcheslav N, Kubanek, Alexander, Rogers, Lachlan J, Jelezko, Fedor

“…Colour centres in nanodiamonds are an important resource for applications in quantum sensing, biological imaging, and quantum optics. Here we report…”
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Open-Cavity in Closed-Cycle Cryostat as a Quantum Optics Platform by Vadia, Samarth, Scherzer, Johannes, Thierschmann, Holger, Schäfermeier, Clemens, Dal Savio, Claudio, Taniguchi, Takashi, Watanabe, Kenji, Hunger, David, Karraï, Khaled, Högele, Alexander

“…The introduction of an optical resonator can enable efficient and precise interaction between a photon and a solid-state emitter. It facilitates the study of…”
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Erratum: Quantum enhanced feedback cooling of a mechanical oscillator using nonclassical light by Schäfermeier, Clemens, Kerdoncuff, Hugo, Hoff, Ulrich B., Fu, Hao, Huck, Alexander, Bilek, Jan, Harris, Glen I., Bowen, Warwick P., Gehring, Tobias, Andersen, Ulrik L.

“…Nature Communications 7: Article number: 13628 (2014); Published 29 November 2016; Updated 3 February 2017 This Article contains a typographical error in the…”
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Correlated classical states outperform squeezed states in communication over Gaussian channels by Schafermeier, Clemens, Andersen, Ulrik L.

“…Using a quantum amplifier in a Gaussian channel, we show that classically correlated input states can outperform the mutual information of squeezed states…”
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Quantum-Enhanced Optomechanical Magnetometry by Bilek, Jan, Bei-Bei Li, Hoff, Ulrich B., Madsen, Lars, Forstner, Stefan, Prakash, Varun, Schafermeier, Clemens, Gehring, Tobias, Bowen, Warwick P., Andersen, Ulrik L.

“…Quantum-enhanced measurements of magnetic fields are experimentally demonstrated using a microcavity optomechanical magnetometer and squeezed states of light…”
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Ultrasensitive and broadband magnetometry with cavity optomechanics by Bei-Bei Li, Bulla, Douglas, Bilek, Jan, Prakash, Varun, Forstner, Stefan, Sheridan, Eoin, Madsen, Lars, Rubinsztein-Dunlop, Halina, Foster, Scott, Schafermeier, Clemens, Gehring, Tobias, Andersen, Ulrik, Bowen, Warwick

“…We achieved sensitivity of 30 pT/Hz 1/2 and working bandwidth larger than 100 MHz, using cavity optomechanical magnetometry, and also demonstrated quantum…”
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Phase measurements exhibiting super sensitivity and super resolution features by Schafermeier, Clemens, Jezek, Miroslav, Gehring, Tobias, Andersen, Ulrik L.

“…By using an optical squeezed state and a post-processed homodyne detection scheme we show that phase measurements can overcome Rayleigh's resolution criterion…”
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Practical quantum computing on encrypted data by Marshall, Kevin, Jacobsen, Christian S, Schafermeier, Clemens, Gehring, Tobias, Weedbrook, Christian, Andersen, Ulrik L

“…Nat. Comm. 7, 13795 (2016) The ability to perform computations on encrypted data is a powerful tool for protecting a client's privacy, especially in today's…”
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Mutual information of optical communication in phase conjugating Gaussian channels by Schäfermeier, Clemens, Andersen, Ulrik L

“…Phys. Rev. A 97, 032313 (2018) In all practical communication channels, the code word consist of Gaussian states and the measurement strategy is often a…”
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Open-cavity in closed-cycle cryostat as a quantum optics platform by Vadia, Samarth, Scherzer, Johannes, Thierschmann, Holger, Schäfermeier, Clemens, Savio, Claudio Dal, Taniguchi, Takashi, Watanabe, Kenji, Hunger, David, Karraï, Khaled, Högele, Alexander

“…PRX QUANTUM 2, 040318 (2021) The introduction of an optical resonator can enable efficient and precise interaction between a photon and a solid-state emitter…”
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Deterministic phase measurements exhibiting super-sensitivity and super-resolution by Schäfermeier, Clemens, Ježek, Miroslav, Madsen, Lars S, Gehring, Tobias, Andersen, Ulrik L

“…Optica, Vol. 5, Issue 1, pp. 60-64 (2018) Phase super-sensitivity is obtained when the sensitivity in a phase measurement goes beyond the quantum shot noise…”
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Centimeter-scale suspended photonic crystal mirrors by Moura, Joao P, Norte, Richard A, Guo, Jingkun, Schäfermeier, Clemens, Gröblacher, Simon

“…Opt. Express 26, 1895-1909 (2018) Demand for lightweight, highly reflective and mechanically compliant mirrors for optics experiments has seen a significant…”
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Quantum enhanced optomechanical magnetometry by Li, Bei-Bei, Bilek, Jan, Hoff, Ulrich B, Madsen, Lars S, Forstner, Stefan, Prakash, Varun, Schäfermeier, Clemens, Gehring, Tobias, Bowen, Warwick P, Andersen, Ulrik L

“…Optica 5, 850 (2018) The resonant enhancement of both mechanical and optical response in microcavity optomechanical devices allows exquisitely sensitive…”
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Quantum enhanced feedback cooling of a mechanical oscillator by Schäfermeier, Clemens, Kerdoncuff, Hugo, Hoff, Ulrich B, Fu, Hao, Huck, Alexander, Bilek, Jan, Harris, Glen I, Bowen, Warwick P, Gehring, Tobias, Andersen, Ulrik L

“…Nat. Commun. 7, 13628 (2016) Laser cooling is a fundamental technique used in primary atomic frequency standards, quantum computers, quantum condensed matter…”
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Nanodiamonds carrying quantum emitters with almost lifetime-limited linewidths by Jantzen, Uwe, Filipovski, Andrea B, Rudnicki, Daniel S, Schäfermeier, Clemens, Jahnke, Kay D, Andersen, Ulrik L, Davydov, Valery A, Agafonov, Viatcheslav N, Kubanek, Alexander, Rogers, Lachlan J, Jelezko, Fedor

“…Nanodiamonds (NDs) hosting optically active defects are an important technical material for applications in quantum sensing, biological imaging, and quantum…”
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