Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Bias-free source-independent quantum random number generator   A bias-free source-independent quantum random number generator scheme based
on the measurement of vacuum fluctuation is proposed to realize the effective
elimination of system bias and common mode noise introduced by the local
oscillator. Optimal parameter settings are derived to avoid the system
recording two canonically conjugate quadratures simultaneously in each
measurement. In particular, it provides a new approach to investigate the
performance difference between measuring two quadratures of equal and unequal
intensity. It is experimentally demonstrated that the system supports 4.2 Gbps
bias-free source-independent random number generation, where its common mode
rejection ratio reaches 61.17 dB. Furthermore, the scheme offers an all-optical
method facilitating the integration of source-independent quantum random number
generators into compact chips.

15
The categories of this paper are: nucl-ex
29
The categories of this paper are: funct-an
37
The categories of this paper are: supr-con
27
The categories of this paper are: comp-gas
3
The categories of this paper are: physics
21
The categories of this paper are: adap-org
33
The categories of this paper are: plasm-ph
4
The categories of this paper are: cond-mat
25
The categories of this paper are: patt-sol
19
The categories of this paper are: eess
23
The categories of this paper are: solv-int
31
The categories of this paper are: ao-sci
24
The categories of this paper are: dg-ga
26
The categories of this paper are: bayes-an
14
The categories of this paper are: math-ph
5
The categories of this paper are: gr-qc