Quantitative Tomography for Continuous Variable Quantum Systems
نویسندگان
چکیده
منابع مشابه
Continuous-variable optical quantum state tomography
This review covers latest developments in continuous-variable quantum-state tomography of optical fields and photons, placing a special accent on its practical aspects and applications in quantum information technology. Optical homodyne tomography is reviewed as a method of reconstructing the state of light in a given optical mode. A range of relevant practical topics are discussed, such as sta...
متن کاملHolonomic Quantum Control with Continuous Variable Systems.
Universal computation of a quantum system consisting of superpositions of well-separated coherent states of multiple harmonic oscillators can be achieved by three families of adiabatic holonomic gates. The first gate consists of moving a coherent state around a closed path in phase space, resulting in a relative Berry phase between that state and the other states. The second gate consists of "c...
متن کاملQuantum nonlocality and partial transposition for continuous-variable systems.
A continuous-variable Bell inequality, valid for an arbitrary number of observers measuring observables with an arbitrary number of outcomes, was recently introduced [Cavalcanti, Phys. Rev. Lett. 99, 210405 (2007)10.1103/PhysRevLett.99.210405]. We prove that any n-mode quantum state violating this inequality with quadrature measurements necessarily has a negative partial transposition. Our resu...
متن کاملOptimized tomography of continuous variable systems using excitation counting
Chao Shen,1,* Reinier W. Heeres,1 Philip Reinhold,1 Luyao Jiang,2 Yi-Kai Liu,3,4 Robert J. Schoelkopf,1,2 and Liang Jiang1,2 1Department of Applied Physics, Yale University, New Haven, Connecticut 06511, USA 2Department of Physics, Yale University, New Haven, Connecticut 06511, USA 3Joint Center for Quantum Information and Computer Science, University of Maryland, College Park, Maryland 20742, ...
متن کاملContinuous history variable for programmable quantum processors
In this brief note is discussed application of continuous quantum history (" trash ") variable for simplification of scheme of programmable quantum processor. Similar scheme may be tested also in other models of the theory of quantum algorithms and complexity, because provides modification of a standard operation: quantum function evaluation. It was discussed in [1], that programmable quantum c...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review Letters
سال: 2018
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.120.090501