<p>Munero et al. developed one parameter family of mixed states <InlineEquation ID="IEq1"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="10773_2025_5974_Article_IEq1.gif" Format="GIF" Height="20" Rendition="HTML" Resolution="72" Type="Linedraw" Width="20" /> </InlineMediaObject> <EquationSource Format="TEX">\(\varvec{\rho ^{l}}\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <msup> <mi mathvariant="bold-italic">ρ</mi> <mi mathvariant="bold-italic">l</mi> </msup> </mrow> </math></EquationSource> </InlineEquation>, which are more entangled than bipartite Werner states. The similar family of mixed states <InlineEquation ID="IEq2"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="10773_2025_5974_Article_IEq2.gif" Format="GIF" Height="17" Rendition="HTML" Resolution="72" Type="Linedraw" Width="23" /> </InlineMediaObject> <EquationSource Format="TEX">\(\varvec{\rho ^{n}}\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <msup> <mi mathvariant="bold-italic">ρ</mi> <mi mathvariant="bold-italic">n</mi> </msup> </mrow> </math></EquationSource> </InlineEquation> are developed by Ł. Derkacz et al. with different approach. Further the authors extended <InlineEquation ID="IEq3"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="10773_2025_5974_Article_IEq3.gif" Format="GIF" Height="17" Rendition="HTML" Resolution="72" Type="Linedraw" Width="23" /> </InlineMediaObject> <EquationSource Format="TEX">\(\varvec{\rho ^{n}}\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <msup> <mi mathvariant="bold-italic">ρ</mi> <mi mathvariant="bold-italic">n</mi> </msup> </mrow> </math></EquationSource> </InlineEquation> to two parameter family of quantum states <InlineEquation ID="IEq4"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="10773_2025_5974_Article_IEq4.gif" Format="GIF" Height="17" Rendition="HTML" Resolution="72" Type="Linedraw" Width="27" /> </InlineMediaObject> <EquationSource Format="TEX">\(\varvec{\rho ^{m}}\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <msup> <mi mathvariant="bold-italic">ρ</mi> <mi mathvariant="bold-italic">m</mi> </msup> </mrow> </math></EquationSource> </InlineEquation> and characterized these states in terms of Bell inequality violation against their mixedness. In the present article, we investigate the comparative dynamics of all mixed states <InlineEquation ID="IEq5"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="10773_2025_5974_Article_IEq5.gif" Format="GIF" Height="21" Rendition="HTML" Resolution="72" Type="Linedraw" Width="93" /> </InlineMediaObject> <EquationSource Format="TEX">\(\varvec{(\rho ^{l},\rho ^{n},\rho ^{m})}\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mo mathvariant="bold" stretchy="false">(</mo> <msup> <mi mathvariant="bold-italic">ρ</mi> <mi mathvariant="bold-italic">l</mi> </msup> <mo mathvariant="bold">,</mo> <msup> <mi mathvariant="bold-italic">ρ</mi> <mi mathvariant="bold-italic">n</mi> </msup> <mo mathvariant="bold">,</mo> <msup> <mi mathvariant="bold-italic">ρ</mi> <mi mathvariant="bold-italic">m</mi> </msup> <mo mathvariant="bold" stretchy="false">)</mo> </mrow> </math></EquationSource> </InlineEquation> under the bipartite Ising Hamiltonian exposed by the external magnetic field and investigate the dynamics of quantum correlations against the mixedness quantified by linear entropy.</p>

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Quantum Correlations in One Parameter Mixed Quantum States

  • Kapil K. Sharma,
  • Rishikant Rajdeepak,
  • Fatih Ozaydin

摘要

Munero et al. developed one parameter family of mixed states \(\varvec{\rho ^{l}}\) ρ l , which are more entangled than bipartite Werner states. The similar family of mixed states \(\varvec{\rho ^{n}}\) ρ n are developed by Ł. Derkacz et al. with different approach. Further the authors extended \(\varvec{\rho ^{n}}\) ρ n to two parameter family of quantum states \(\varvec{\rho ^{m}}\) ρ m and characterized these states in terms of Bell inequality violation against their mixedness. In the present article, we investigate the comparative dynamics of all mixed states \(\varvec{(\rho ^{l},\rho ^{n},\rho ^{m})}\) ( ρ l , ρ n , ρ m ) under the bipartite Ising Hamiltonian exposed by the external magnetic field and investigate the dynamics of quantum correlations against the mixedness quantified by linear entropy.