Results 21 to 30 of about 1,674 (111)
Optimized quantum nondemolition measurement of a field quadrature [PDF]
, 2002 We suggest an interferometric scheme assisted by squeezing and linear feedback to realize the whole class of field-quadrature quantum nondemolition measurements, from Von Neumann projective measurement to fully non-destructive non-informative one. In our
A. La Porta +16 more
core +1 more source
Coherent nonlinear optics of quantum emitters in nanophotonic waveguides
Nanophotonics, Volume 8, Issue 10, Page 1641-1657, June 2018., 2018 Abstract Coherent quantum optics, where the phase of a photon is not scrambled as it interacts with an emitter, lies at the heart of many quantum optical effects and emerging technologies. Solid‐state emitters coupled to nanophotonic waveguides are a promising platform for quantum devices, as this element can be integrated into complex photonic chips ...
Pierre Türschmann +7 more
wiley +1 more source
An Experiment and Detection Scheme for Cavity‐Based Light Cold Dark Matter Particle Searches
Advances in High Energy Physics, Volume 2017, Issue 1, 2017., 2017 A resonance detection scheme and some useful ideas for cavity‐based searches of light cold dark matter particles (such as axions) are presented, as an effort to aid in the on‐going endeavors in this direction as well as for future experiments, especially in possibly developing a table‐top experiment.
Masroor H. S. Bukhari +2 more
wiley +1 more source
Quantum Nondemolition Measurement of a Kicked Qubit
, 2004 We propose a quantum nondemolition measurement using a kicked two-state system (qubit). By tuning the waiting time between kicks to be the qubit oscillation period, the kicking apparatus performs a nondemolition measurement.
Andrew N. Jordan +8 more
core +2 more sources
An All Linear Optical Quantum Memory Based on Quantum Error Correction [PDF]
, 2003 When photons are sent through a fiber as part of a quantum communication protocol, the error that is most difficult to correct is photon loss. Here, we propose and analyze a two-to-four qubit encoding scheme, which can recover the loss of one qubit in ...
Dowling, Jonathan P. +4 more
core +3 more sources
A Method for the Measurement of Photons Number and Squeezing Parameter in a Quantum Cavity
International Scholarly Research Notices, Volume 2013, Issue 1, 2013., 2013 Measurement of photons number in a quantum cavity is very difficult and the photons number is changed after each measurement. Recently, many efforts have been done for the nondemolition measurement methods. Haroche et al. succeed in recognizing existence or nonexistence of one photon in a quantum cavity.
Ghasem Naeimi +5 more
wiley +1 more source
A discrete invitation to quantum filtering and feedback control [PDF]
, 2006 The engineering and control of devices at the quantum-mechanical level--such as those consisting of small numbers of atoms and photons--is a delicate business.
Belavkin V. P. +7 more
core +3 more sources
Universal Dynamical Control of Open Quantum Systems
International Scholarly Research Notices, Volume 2013, Issue 1, 2013., 2013 Due to increasing demands on speed and security of data processing, along with requirements on measurement precision in fundamental research, quantum phenomena are expected to play an increasing role in future technologies. Special attention must hence be paid to omnipresent decoherence effects, which hamper quantumness.
Gershon Kurizki +4 more
wiley +1 more source
Security of direct communication quantum channel with feedback
, 2015 In the direct communication quantum channels the authorized recipient (Bob) and the non-authorized recipient (Eve) have different abilities for verification of received information.
Usenko, Constantin V.
core +1 more source
Closed‐Loop and Robust Control of Quantum Systems
The Scientific World Journal, Volume 2013, Issue 1, 2013., 2013 For most practical quantum control systems, it is important and difficult to attain robustness and reliability due to unavoidable uncertainties in the system dynamics or models. Three kinds of typical approaches (e.g., closed‐loop learning control, feedback control, and robust control) have been proved to be effective to solve these problems. This work
Chunlin Chen +4 more
wiley +1 more source