Quantum annealed criticality: A scaling description
Experimentally there exist many materials with first-order phase transitions at finite temperature that display quantum criticality. Classically, a strain-energy density coupling is known to drive first-order transitions in compressible systems, and here we generalize this Larkin et al. [Zh. Eksp. T...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2020-12-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.2.043440 |
| _version_ | 1797211139106406400 |
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| author | Premala Chandra Piers Coleman Mucio A. Continentino Gilbert G. Lonzarich |
| author_facet | Premala Chandra Piers Coleman Mucio A. Continentino Gilbert G. Lonzarich |
| author_sort | Premala Chandra |
| collection | DOAJ |
| description | Experimentally there exist many materials with first-order phase transitions at finite temperature that display quantum criticality. Classically, a strain-energy density coupling is known to drive first-order transitions in compressible systems, and here we generalize this Larkin et al. [Zh. Eksp. Teor. Fiz. 56, 1664 (1969) [Sov. Phys. JETP 29, 891 (1969)]] mechanism to the quantum case. We show that if the T=0 system lies above its upper critical dimension, the line of first-order transitions ends in a “quantum annealed critical point” where zero-point fluctuations restore the underlying criticality of the order parameter. The generalized Larkin-Pikin phase diagram is presented and experimental consequences are discussed. |
| first_indexed | 2024-04-24T10:21:44Z |
| format | Article |
| id | doaj.art-85c440b5223847f9a580d9f039d29e86 |
| institution | Directory Open Access Journal |
| issn | 2643-1564 |
| language | English |
| last_indexed | 2024-04-24T10:21:44Z |
| publishDate | 2020-12-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj.art-85c440b5223847f9a580d9f039d29e862024-04-12T17:05:56ZengAmerican Physical SocietyPhysical Review Research2643-15642020-12-012404344010.1103/PhysRevResearch.2.043440Quantum annealed criticality: A scaling descriptionPremala ChandraPiers ColemanMucio A. ContinentinoGilbert G. LonzarichExperimentally there exist many materials with first-order phase transitions at finite temperature that display quantum criticality. Classically, a strain-energy density coupling is known to drive first-order transitions in compressible systems, and here we generalize this Larkin et al. [Zh. Eksp. Teor. Fiz. 56, 1664 (1969) [Sov. Phys. JETP 29, 891 (1969)]] mechanism to the quantum case. We show that if the T=0 system lies above its upper critical dimension, the line of first-order transitions ends in a “quantum annealed critical point” where zero-point fluctuations restore the underlying criticality of the order parameter. The generalized Larkin-Pikin phase diagram is presented and experimental consequences are discussed.http://doi.org/10.1103/PhysRevResearch.2.043440 |
| spellingShingle | Premala Chandra Piers Coleman Mucio A. Continentino Gilbert G. Lonzarich Quantum annealed criticality: A scaling description Physical Review Research |
| title | Quantum annealed criticality: A scaling description |
| title_full | Quantum annealed criticality: A scaling description |
| title_fullStr | Quantum annealed criticality: A scaling description |
| title_full_unstemmed | Quantum annealed criticality: A scaling description |
| title_short | Quantum annealed criticality: A scaling description |
| title_sort | quantum annealed criticality a scaling description |
| url | http://doi.org/10.1103/PhysRevResearch.2.043440 |
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