Optimal quantum-programmable projective measurement with linear optics

اسناد مشابه

• Optimal Encoding Capacity of a Linear Optical Quantum Channel

  سند علمی۲۰۱۵CoRRJake A. Smith, Dmitry B. Uskov, Lev Kaplan

  Here, we study the capacity of a quantum channel, assuming linear optical encoding, as a function of available photons and optical modes. First, we observe that substantial improvement is made possible by not restricting ourselves to a rail-encoded qubit basis. Then, we derive an

• Quantum Process Calculus for Linear Optical Quantum Computing

  سند علمی۲۰۱۳RCSonja Franke-Arnold, Simon J. Gay, Ittoop Vergheese Puthoor

  We extend quantum process calculus in order to describe linear optical elements. In all previous work on quantum process calculus a qubit was considered as the information encoded within a 2 dimensional Hilbert space describing the internal states of a localised particle, most of

• Optimal implementation of two-qubit linear-optical quantum filters

  مقاله‌ی دسترسی آزاد۲۰۲۱Physical Review A['Jaromír Fiurášek', 'Robert Stárek', 'Michal Mi?uda', '']

  We design optimal interferometric schemes for implementation of two-qubit linear optical quantum filters diagonal in the computational basis. The filtering is realized by interference two photons encoding qubits a multiport interferometer, followed conditioning on presence single

• Modular quantum memories using passive linear optics and coherent feedback

  سند علمی۲۰۱۵Quantum Information & ComputationHendra Ishwara Nurdin, John Edward Gough

  In this paper, we show that quantum memory for qudit states encoded in a single photon pulsed optical field has a conceptually simple modular realization using only passive linear optics and coherent feedback. We exploit the idea that two decaying optical cavities can be coupled

• Mixed basis quantum key distribution with linear optics

  سند علمی۲۰۱۷Optics expressMladen Pavicic, Oliver Benson, Andreas W. Schell, Janik Wolters

  Two-qubit quantum codes have been suggested to obtain better efficiency and higher loss tolerance in quantum key distribution. Here, we propose a two-qubit quantum key distribution protocol based on a mixed basis consisting of two Bell states and two states from the computational

• Toward Quantum-Limited Position Measurements Using Optically Levitated Microspheres

  سند علمی۲۰۰۳KENNETH G. LIBBRECHT, ERIC D. BLACK, Norman Bridge

  We describe the use of optically levitated microspheres as test masses in experiments aimed at reaching and potentially exceeding the standard quantum limit for position measurements. Optically levitated microspheres have low mass and are essentially free of suspension thermal no