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Lieb–Liniger model
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<p>In <a href="/facts/Physics/a7aH2y08">physics</a>, the Lieb–Liniger model describes a gas of particles moving in one dimension and satisfying <a href="/facts/Bose%25E2%2580%2593Einstein_statistics/Utb2jN3n">Bose–Einstein statistics</a>. More specifically, it describes a one dimensional <a href="/facts/Bose_gas/T3bsKjPS">Bose gas</a> with <a href="/facts/Dirac_delta_function/V8PjRP8T">Dirac delta</a> interactions. It is named after <a href="/facts/Elliott_H._Lieb/Vr4mrmtb">Elliott H. Lieb</a> and Werner Liniger [de] who introduced the model in 1963. The model was developed to compare and test <a href="/facts/Nikolay_Bogolyubov/39w1trXl">Nikolay Bogolyubov</a>'s theory of a weakly interaction Bose gas. </p>