Three criteria for quantum random-number generators based on beam splitters

Svozil, Karl

doi:10.1103/PHYSREVA.79.054306

Title: Three criteria for quantum random-number generators based on beam splitters

Full Record
Other Related Research

Abstract

We propose three criteria for the generation of random digital strings from quantum beam splitters: (i) three or more mutually exclusive outcomes corresponding to the invocation of three- and higher-dimensional Hilbert spaces, (ii) the mandatory use of pure states in conjugated bases for preparation and detection, and (iii) the use of entangled singlet (unique) states for elimination of bias.

Authors:

Svozil, Karl ^[1]

Institute for Theoretical Physics, Vienna University of Technology, Wiedner Hauptstrasse 8-10/136, A-1040 Vienna (Austria)

Publication Date:: Fri May 15 00:00:00 EDT 2009

OSTI Identifier:: 21313144

Resource Type:: Journal Article

Journal Name:: Physical Review. A

Additional Journal Information:: Journal Volume: 79; Journal Issue: 5; Other Information: DOI: 10.1103/PhysRevA.79.054306; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1050-2947

Country of Publication:: United States

Language:: English

Subject:: 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; BEAMS; DETECTION; HILBERT SPACE; OPTICS; QUANTUM CRYPTOGRAPHY; QUANTUM ENTANGLEMENT; RANDOMNESS

Citation Formats


                    Svozil, Karl. Three criteria for quantum random-number generators based on beam splitters.  United States: N. p., 2009. 
        Web.  doi:10.1103/PHYSREVA.79.054306.

Copy to clipboard


                    Svozil, Karl. Three criteria for quantum random-number generators based on beam splitters.  United States.  https://doi.org/10.1103/PHYSREVA.79.054306

Copy to clipboard


                    Svozil, Karl. 2009.  
        "Three criteria for quantum random-number generators based on beam splitters".  United States.  https://doi.org/10.1103/PHYSREVA.79.054306.

Copy to clipboard


                    
@article{osti_21313144,

  title        = {Three criteria for quantum random-number generators based on beam splitters},

  author       = {Svozil, Karl},

  abstractNote = {We propose three criteria for the generation of random digital strings from quantum beam splitters: (i) three or more mutually exclusive outcomes corresponding to the invocation of three- and higher-dimensional Hilbert spaces, (ii) the mandatory use of pure states in conjugated bases for preparation and detection, and (iii) the use of entangled singlet (unique) states for elimination of bias.},

  doi          = {10.1103/PHYSREVA.79.054306},

  url          = {https://www.osti.gov/biblio/21313144},
  journal      = {Physical Review. A},

  issn         = {1050-2947},

  number       = 5,

  volume       = 79,

  place        = {United States},

  year         = {Fri May 15 00:00:00 EDT 2009},

  month        = {Fri May 15 00:00:00 EDT 2009}

}

Copy to clipboard

Journal Article:

https://doi.org/10.1103/PHYSREVA.79.054306

Other availability

Find in Google Scholar

Search WorldCat to find libraries that may hold this journal

Save / Share:

Export Metadata

Save to My Library

Similar records in OSTI.GOV collections:

Discriminating quantum-optical beam-splitter channels with number-diagonal signal states: Applications to quantum reading and target detection

Journal Article Nair, Ranjith - Physical Review. A

We consider the problem of distinguishing, with minimum probability of error, two optical beam-splitter channels with unequal complex-valued reflectivities using general quantum probe states entangled over M signal and M' idler mode pairs of which the signal modes are bounced off the beam splitter while the idler modes are retained losslessly. We obtain a lower bound on the output state fidelity valid for any pure input state. We define number-diagonal signal (NDS) states to be input states whose density operator in the signal modes is diagonal in the multimode number basis. For such input states, we derive series formulas formore »« less
https://doi.org/10.1103/PHYSREVA.84.032312
Entanglement generation from thermal spin states via unitary beam splitters

Journal Article Markham, D; Murao, M; Vedral, V - Physical Review. A

We suggest a method of generating distillable entanglement from mixed states unitarily, by utilizing the flexibility of dimension of occupied Hilbert space. We present a model of a thermal spin state entering a beam splitter generating entanglement. It is the truncation of the state that allows for entanglement generation. The output entanglement is investigated for different temperatures and it is found that more randomness - in the form of higher temperature - is better for this setup.
https://doi.org/10.1103/PhysRevA.70.062312
Measurement-induced criticality in random quantum circuits

Journal Article Jian, Chao-Ming; You, Yi-Zhuang; Vasseur, Romain; ... - Physical Review B

We investigate the critical behavior of the entanglement transition induced by projective measurements in (Haar) random unitary quantum circuits. Using a replica approach, we map the calculation of the entanglement entropies in such circuits onto a two-dimensional statistical-mechanics model. In this language, the area- to volume-law entanglement transition can be interpreted as an ordering transition in the statistical-mechanics model. We derive the general scaling properties of the entanglement entropies and mutual information near the transition using conformal invariance. We analyze in detail the limit of infinite on-site Hilbert space dimension in which the statistical-mechanics model maps onto percolation. In particular,more »« less
Cited by 160
https://doi.org/10.1103/PhysRevB.101.104302

Full Text Available
The generation of 68 Gbps quantum random number by measuring laser phase fluctuations

Journal Article Nie, You-Qi; Liu, Yang; Zhang, Jun; ... - Review of Scientific Instruments

The speed of a quantum random number generator is essential for practical applications, such as high-speed quantum key distribution systems. Here, we push the speed of a quantum random number generator to 68 Gbps by operating a laser around its threshold level. To achieve the rate, not only high-speed photodetector and high sampling rate are needed but also a very stable interferometer is required. A practical interferometer with active feedback instead of common temperature control is developed to meet the requirement of stability. Phase fluctuations of the laser are measured by the interferometer with a photodetector and then digitalized tomore »« less
https://doi.org/10.1063/1.4922417
Beam splitter entangler for light fields

Journal Article Xunli, Feng; Ruxin, Li; Zhizhan, Xu - Physical Review. A

We propose an experimentally feasible scheme to generate various types of entangled states of light fields by using beam splitters and single-photon detectors. Two beams of light fields are incident on two beam splitters respectively with each beam being asymmetrically split into two parts in which one part is supposed to be so weak that it contains at most one photon. We let the two weak output modes interfere at a third beam splitter. A conditional joint measurement on both weak output modes may result in an entanglement between the other two output modes. The conditions for the maximal entanglementmore »« less
https://doi.org/10.1103/PhysRevA.71.032335

Similar Records