<p>In this paper, we investigate the local distinguishability of lattice states in an arbitrary dimension system. Suppose <InlineEquation ID="IEq1"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="11128_2025_4755_Article_IEq1.gif" Format="GIF" Height="26" Rendition="HTML" Resolution="72" Type="Linedraw" Width="92" /> </InlineMediaObject> <EquationSource Format="TEX">\(d=\prod _{j=1}^{f}p_{j}^{r_{j}}\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mi>d</mi> <mo>=</mo> <msubsup> <mo>∏</mo> <mrow> <mi>j</mi> <mo>=</mo> <mn>1</mn> </mrow> <mi>f</mi> </msubsup> <msubsup> <mi>p</mi> <mrow> <mi>j</mi> </mrow> <msub> <mi>r</mi> <mi>j</mi> </msub> </msubsup> </mrow> </math></EquationSource> </InlineEquation> is the prime factorization of a positive integer <i>d</i>. For all the lattice matrices in <InlineEquation ID="IEq2"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="11128_2025_4755_Article_IEq2.gif" Format="GIF" Height="18" Rendition="HTML" Resolution="72" Type="Linedraw" Width="59" /> </InlineMediaObject> <EquationSource Format="TEX">\(\mathbb {C}^{d}\otimes \mathbb {C}^{d}\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <msup> <mrow> <mi mathvariant="double-struck">C</mi> </mrow> <mi>d</mi> </msup> <mo>⊗</mo> <msup> <mrow> <mi mathvariant="double-struck">C</mi> </mrow> <mi>d</mi> </msup> </mrow> </math></EquationSource> </InlineEquation>, we present a useful characterization of the maximal commuting set (MCS). We also show that each MCS contains exactly <i>d</i> matrices and there are a total of <InlineEquation ID="IEq3"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="11128_2025_4755_Article_IEq3.gif" Format="GIF" Height="26" Rendition="HTML" Resolution="72" Type="Linedraw" Width="132" /> </InlineMediaObject> <EquationSource Format="TEX">\(\prod _{j=1}^{f}\prod _{i=1}^{r_{j}}(p_{j}^{i}+1)\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <msubsup> <mo>∏</mo> <mrow> <mi>j</mi> <mo>=</mo> <mn>1</mn> </mrow> <mi>f</mi> </msubsup> <msubsup> <mo>∏</mo> <mrow> <mi>i</mi> <mo>=</mo> <mn>1</mn> </mrow> <msub> <mi>r</mi> <mi>j</mi> </msub> </msubsup> <mrow> <mo stretchy="false">(</mo> <msubsup> <mi>p</mi> <mrow> <mi>j</mi> </mrow> <mi>i</mi> </msubsup> <mo>+</mo> <mn>1</mn> <mo stretchy="false">)</mo> </mrow> </mrow> </math></EquationSource> </InlineEquation> distinct MCSs. Using these results of MCS, we present two methods to determine the local discrimination of lattice states. The previous results [Sci. China-Phys. Mech. Astron. 63, 280312 (2020)] can be covered by our results.</p>

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Local distinguishability of lattice states in arbitrary dimensional system

  • Qi-Yue Zhao,
  • Ying-Hui Yang,
  • Shi-Jiao Geng,
  • Pei-Ying Chen

摘要

In this paper, we investigate the local distinguishability of lattice states in an arbitrary dimension system. Suppose \(d=\prod _{j=1}^{f}p_{j}^{r_{j}}\) d = j = 1 f p j r j is the prime factorization of a positive integer d. For all the lattice matrices in \(\mathbb {C}^{d}\otimes \mathbb {C}^{d}\) C d C d , we present a useful characterization of the maximal commuting set (MCS). We also show that each MCS contains exactly d matrices and there are a total of \(\prod _{j=1}^{f}\prod _{i=1}^{r_{j}}(p_{j}^{i}+1)\) j = 1 f i = 1 r j ( p j i + 1 ) distinct MCSs. Using these results of MCS, we present two methods to determine the local discrimination of lattice states. The previous results [Sci. China-Phys. Mech. Astron. 63, 280312 (2020)] can be covered by our results.