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Copaescu AM, Vogrin S, James F, Chua KYL, Rose MT, De Luca J, Waldron J, Awad A, Godsell J, Mitri E, Lambros B, Douglas A, Youcef Khoudja R, Isabwe GAC, Genest G, Fein M, Radojicic C, Collier A, Lugar P, Stone C, Ben-Shoshan M, Turner NA, Holmes NE, Phillips EJ, Trubiano JA. Efficacy of a Clinical Decision Rule to Enable Direct Oral Challenge in Patients With Low-Risk Penicillin Allergy: The PALACE Randomized Clinical Trial. JAMA Intern Med 2023; 183:944-952. [PMID: 37459086 PMCID: PMC10352926 DOI: 10.1001/jamainternmed.2023.2986] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Accepted: 05/17/2023] [Indexed: 07/20/2023]
Abstract
Importance Fewer than 5% of patients labeled with a penicillin allergy are truly allergic. The standard of care to remove the penicillin allergy label in adults is specialized testing involving prick and intradermal skin testing followed by an oral challenge with penicillin. Skin testing is resource intensive, limits practice to specialist-trained physicians, and restricts the global population who could undergo penicillin allergy delabeling. Objective To determine whether a direct oral penicillin challenge is noninferior to the standard of care of penicillin skin testing followed by an oral challenge in patients with a low-risk penicillin allergy. Design, Setting, and Participants This parallel, 2-arm, noninferiority, open-label, multicenter, international randomized clinical trial occurred in 6 specialized centers, 3 in North America (US and Canada) and 3 in Australia, from June 18, 2021, to December 2, 2022. Eligible adults had a PEN-FAST score lower than 3. PEN-FAST is a prospectively derived and internationally validated clinical decision rule that enables point-of-care risk assessment for adults reporting penicillin allergies. Interventions Patients were randomly assigned to either direct oral challenge with penicillin (intervention arm) or a standard-of-care arm of penicillin skin testing followed by oral challenge with penicillin (control arm). Main Outcome and Measure The primary outcome was a physician-verified positive immune-mediated oral penicillin challenge within 1 hour postintervention in the intention-to-treat population. Noninferiority was achieved if a 1-sided 95% CI of the risk difference (RD) did not exceed 5 percentage points (pp). Results A total of 382 adults were randomized, with 377 patients (median [IQR] age, 51 [35-65] years; 247 [65.5%] female) included in the analysis: 187 in the intervention group and 190 in the control group. Most patients had a PEN-FAST score of 0 or 1. The primary outcome occurred in 1 patient (0.5%) in the intervention group and 1 patient (0.5%) in the control group, with an RD of 0.0084 pp (90% CI, -1.22 to 1.24 pp). The 1-sided 95% CI was below the noninferiority margin of 5 pp. In the 5 days following the oral penicillin challenge, 9 immune-mediated adverse events were recorded in the intervention group and 10 in the control group (RD, -0.45 pp; 95% CI, -4.87 to 3.96 pp). No serious adverse events occurred. Conclusions and Relevance In this randomized clinical trial, direct oral penicillin challenge in patients with a low-risk penicillin allergy was noninferior compared with standard-of-care skin testing followed by oral challenge. In patients with a low-risk history, direct oral penicillin challenge is a safe procedure to facilitate the removal of a penicillin allergy label. Trial Registration ClinicalTrials.gov Identifier: NCT04454229.
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Affiliation(s)
- Ana Maria Copaescu
- Centre for Antibiotic Allergy and Research, Department of Infectious Diseases, Austin Health, Heidelberg, Victoria, Australia
- Division of Allergy and Clinical Immunology, Department of Medicine, McGill University Health Centre, McGill University, Montreal, Quebec, Canada
- The Research Institute of the McGill University Health Centre, McGill University Health Centre, McGill University, Montreal, Quebec, Canada
- Department of Medicine, Austin Health, The University of Melbourne, Melbourne, Victoria, Australia
| | - Sara Vogrin
- Department of Medicine, St Vincent’s Hospital, The University of Melbourne, Melbourne, Victoria, Australia
| | - Fiona James
- Centre for Antibiotic Allergy and Research, Department of Infectious Diseases, Austin Health, Heidelberg, Victoria, Australia
| | - Kyra Y. L. Chua
- Centre for Antibiotic Allergy and Research, Department of Infectious Diseases, Austin Health, Heidelberg, Victoria, Australia
| | - Morgan T. Rose
- Centre for Antibiotic Allergy and Research, Department of Infectious Diseases, Austin Health, Heidelberg, Victoria, Australia
- Department of Medicine, Austin Health, The University of Melbourne, Melbourne, Victoria, Australia
- The National Centre for Infections in Cancer, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Joseph De Luca
- Centre for Antibiotic Allergy and Research, Department of Infectious Diseases, Austin Health, Heidelberg, Victoria, Australia
- Department of Medicine, Austin Health, The University of Melbourne, Melbourne, Victoria, Australia
| | - Jamie Waldron
- Centre for Antibiotic Allergy and Research, Department of Infectious Diseases, Austin Health, Heidelberg, Victoria, Australia
| | - Andrew Awad
- Centre for Antibiotic Allergy and Research, Department of Infectious Diseases, Austin Health, Heidelberg, Victoria, Australia
| | - Jack Godsell
- Centre for Antibiotic Allergy and Research, Department of Infectious Diseases, Austin Health, Heidelberg, Victoria, Australia
- Department of Clinical Immunology and Allergy, The Royal Melbourne Hospital, Melbourne, Victoria, Australia
| | - Elise Mitri
- Centre for Antibiotic Allergy and Research, Department of Infectious Diseases, Austin Health, Heidelberg, Victoria, Australia
| | - Belinda Lambros
- The National Centre for Infections in Cancer, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
- Department of Infectious Diseases, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Abby Douglas
- Centre for Antibiotic Allergy and Research, Department of Infectious Diseases, Austin Health, Heidelberg, Victoria, Australia
- The National Centre for Infections in Cancer, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
- Department of Infectious Diseases, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Rabea Youcef Khoudja
- The Research Institute of the McGill University Health Centre, McGill University Health Centre, McGill University, Montreal, Quebec, Canada
| | - Ghislaine A. C. Isabwe
- Division of Allergy and Clinical Immunology, Department of Medicine, McGill University Health Centre, McGill University, Montreal, Quebec, Canada
- The Research Institute of the McGill University Health Centre, McGill University Health Centre, McGill University, Montreal, Quebec, Canada
| | - Genevieve Genest
- Division of Allergy and Clinical Immunology, Department of Medicine, McGill University Health Centre, McGill University, Montreal, Quebec, Canada
- The Research Institute of the McGill University Health Centre, McGill University Health Centre, McGill University, Montreal, Quebec, Canada
| | - Michael Fein
- Division of Allergy and Clinical Immunology, Department of Medicine, McGill University Health Centre, McGill University, Montreal, Quebec, Canada
| | - Cristine Radojicic
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, Duke University School of Medicine, Durham, North Carolina
| | - Ann Collier
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, Duke University School of Medicine, Durham, North Carolina
| | - Patricia Lugar
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, Duke University School of Medicine, Durham, North Carolina
| | - Cosby Stone
- Center for Drug Safety and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Moshe Ben-Shoshan
- The Research Institute of the McGill University Health Centre, McGill University Health Centre, McGill University, Montreal, Quebec, Canada
- Division of Allergy, Immunology and Dermatology, Montreal Children’s Hospital, McGill University Health Centre McGill University, Montreal, Quebec, Canada
| | - Nicholas A. Turner
- Department of Infectious Diseases, Duke University Medical Center, Durham, North Carolina
| | - Natasha E. Holmes
- Centre for Antibiotic Allergy and Research, Department of Infectious Diseases, Austin Health, Heidelberg, Victoria, Australia
- Department of Infectious Diseases, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, Victoria, Australia
| | - Elizabeth J. Phillips
- Center for Drug Safety and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee
- Institute for Immunology and Infectious Diseases, Murdoch University, Murdoch, Western Australia, Australia
| | - Jason A. Trubiano
- Centre for Antibiotic Allergy and Research, Department of Infectious Diseases, Austin Health, Heidelberg, Victoria, Australia
- Department of Infectious Diseases, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
- Department of Infectious Diseases, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, Victoria, Australia
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2
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Trubiano JA, Vogrin S, Mitri E, Hall R, Copaescu A, Waldron J, De Luca J, Rose M, Mackay G, Lambros B, Douglas AP, Holmes NE, Chua KYL. The Who, What, When, and Where of Inpatient Direct Oral Penicillin Challenge-Implications for Health Services Implementation. Clin Infect Dis 2023; 77:19-22. [PMID: 36929823 DOI: 10.1093/cid/ciad156] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 02/13/2023] [Accepted: 03/14/2023] [Indexed: 03/18/2023] Open
Abstract
Inpatient direct oral challenge programs are increasingly deployed as part of antimicrobial stewardship initiatives to reduce the burden and impacts of penicillin allergy labels on antibiotic prescribing. Using data from a prospective, multicenter cohort inpatient penicillin allergy program, we identify the key targets for delabeling to aid health service implementation.
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Affiliation(s)
- Jason Anthony Trubiano
- Department of Infectious Diseases, Centre for Antibiotic Allergy and Research, Austin Health, Heidelberg, Victoria, Australia
- Department of Infectious Diseases, University of Melbourne, at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
| | - Sara Vogrin
- Department of Infectious Diseases, Centre for Antibiotic Allergy and Research, Austin Health, Heidelberg, Victoria, Australia
- Department of Infectious Diseases, University of Melbourne, at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
| | - Elise Mitri
- Department of Infectious Diseases, Centre for Antibiotic Allergy and Research, Austin Health, Heidelberg, Victoria, Australia
- Department of Infectious Diseases, University of Melbourne, at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
- Department of Pharmacy, Austin Health, Heidelberg, Victoria, Australia
| | - Rebecca Hall
- Department of Infectious Diseases, Centre for Antibiotic Allergy and Research, Austin Health, Heidelberg, Victoria, Australia
| | - Ana Copaescu
- Department of Infectious Diseases, Centre for Antibiotic Allergy and Research, Austin Health, Heidelberg, Victoria, Australia
- Department of Infectious Diseases, University of Melbourne, at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
- Department of Medicine, Division of Allergy and Clinical Immunology, McGill University Health Center, Montreal, Quebec, Canada
| | - Jamie Waldron
- Department of Infectious Diseases, Centre for Antibiotic Allergy and Research, Austin Health, Heidelberg, Victoria, Australia
| | - Joseph De Luca
- Department of Infectious Diseases, Centre for Antibiotic Allergy and Research, Austin Health, Heidelberg, Victoria, Australia
| | - Morgan Rose
- Department of Infectious Diseases, Centre for Antibiotic Allergy and Research, Austin Health, Heidelberg, Victoria, Australia
- Department of Infectious Diseases, University of Melbourne, at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
- Department of Infectious Diseases, The National Centre for Infections in Cancer, Peter MacCallum Cancer Centre, Parkville, VIC, Australia
| | - Geoff Mackay
- Albury Wodonga Health, Albury, New South Wales, Australia
| | - Belinda Lambros
- Department of Infectious Diseases, The National Centre for Infections in Cancer, Peter MacCallum Cancer Centre, Parkville, VIC, Australia
| | - Abby P Douglas
- Department of Infectious Diseases, Centre for Antibiotic Allergy and Research, Austin Health, Heidelberg, Victoria, Australia
- Department of Infectious Diseases, The National Centre for Infections in Cancer, Peter MacCallum Cancer Centre, Parkville, VIC, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, Victoria, Australia
| | - Natasha E Holmes
- Department of Infectious Diseases, Centre for Antibiotic Allergy and Research, Austin Health, Heidelberg, Victoria, Australia
- Department of Infectious Diseases, University of Melbourne, at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
- Data Analytics Research and Evaluation (DARE) Centre, Austin Health and The University of Melbourne, Heidelberg, Victoria, Australia
| | - Kyra Y L Chua
- Department of Infectious Diseases, Centre for Antibiotic Allergy and Research, Austin Health, Heidelberg, Victoria, Australia
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De Luca J, Awad A, Vogrin S, Waldron J, Douglas A, Chua K, Holmes N, Trubiano J. Phenotypic distribution and tolerability of re-vaccination in individuals with delayed hypersensitivity to COVID-19 vaccines. J Allergy Clin Immunol 2023. [DOI: 10.1016/j.jaci.2022.12.179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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Slade CA, Bosco JJ, Binh Giang T, Kruse E, Stirling RG, Cameron PU, Hore-Lacy F, Sutherland MF, Barnes SL, Holdsworth S, Ojaimi S, Unglik GA, De Luca J, Patel M, McComish J, Spriggs K, Tran Y, Auyeung P, Nicholls K, O'Hehir RE, Hodgkin PD, Douglass JA, Bryant VL, van Zelm MC. Delayed Diagnosis and Complications of Predominantly Antibody Deficiencies in a Cohort of Australian Adults. Front Immunol 2018; 9:694. [PMID: 29867917 PMCID: PMC5960671 DOI: 10.3389/fimmu.2018.00694] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Accepted: 03/21/2018] [Indexed: 01/04/2023] Open
Abstract
Background Predominantly antibody deficiencies (PADs) are the most common type of primary immunodeficiency in adults. PADs frequently pass undetected leading to delayed diagnosis, delayed treatment, and the potential for end-organ damage including bronchiectasis. In addition, PADs are frequently accompanied by comorbid autoimmune disease, and an increased risk of malignancy. Objectives To characterize the diagnostic and clinical features of adult PAD patients in Victoria, Australia. Methods We identified adult patients receiving, or having previously received immunoglobulin replacement therapy for a PAD at four hospitals in metropolitan Melbourne, and retrospectively characterized their clinical and diagnostic features. Results 179 patients from The Royal Melbourne, Alfred and Austin Hospitals, and Monash Medical Centre were included in the study with a median age of 49.7 years (range: 16–87 years), of whom 98 (54.7%) were female. The majority of patients (116; 64.8%) met diagnostic criteria for common variable immunodeficiency (CVID), and 21 (11.7%) were diagnosed with X-linked agammaglobulinemia (XLA). Unclassified hypogammaglobulinemia (HGG) was described in 22 patients (12.3%), IgG subclass deficiency (IGSCD) in 12 (6.7%), and specific antibody deficiency (SpAD) in 4 individuals (2.2%). The remaining four patients had a diagnosis of Good syndrome (thymoma with immunodeficiency). There was no significant difference between the age at diagnosis of the disorders, with the exception of XLA, with a median age at diagnosis of less than 1 year. The median age of reported symptom onset was 20 years for those with a diagnosis of CVID, with a median age at diagnosis of 35 years. CVID patients experienced significantly more non-infectious complications, such as autoimmune cytopenias and lymphoproliferative disease, than the other antibody deficiency disorders. The presence of non-infectious complications was associated with significantly reduced survival in the cohort. Conclusion Our data are largely consistent with the experience of other centers internationally, with clear areas for improvement, including reducing diagnostic delay for patients with PADs. It is likely that these challenges will be in part overcome by continued advances in implementation of genomic sequencing for diagnosis of PADs, and with that opportunities for targeted treatment of non-infectious complications.
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Affiliation(s)
- Charlotte A Slade
- Department of Clinical Immunology and Allergy, The Royal Melbourne Hospital, Melbourne, VIC, Australia.,Immunology Division, The Walter and Eliza Hall Institute for Medical Research, Melbourne, VIC, Australia.,Department of Medical Biology, The University of Melbourne, Melbourne, VIC, Australia.,The Jeffrey Modell Diagnostic and Research Centre for Primary Immunodeficiencies, Melbourne, VIC, Australia
| | - Julian J Bosco
- The Jeffrey Modell Diagnostic and Research Centre for Primary Immunodeficiencies, Melbourne, VIC, Australia.,Department of Allergy, Immunology and Respiratory Medicine, The Alfred Hospital, Melbourne, VIC, Australia
| | - Tran Binh Giang
- Department of Clinical Immunology and Allergy, The Royal Melbourne Hospital, Melbourne, VIC, Australia.,Immunology Division, The Walter and Eliza Hall Institute for Medical Research, Melbourne, VIC, Australia
| | - Elizabeth Kruse
- Immunology Division, The Walter and Eliza Hall Institute for Medical Research, Melbourne, VIC, Australia.,Department of Medical Biology, The University of Melbourne, Melbourne, VIC, Australia
| | - Robert G Stirling
- Department of Allergy, Immunology and Respiratory Medicine, The Alfred Hospital, Melbourne, VIC, Australia
| | - Paul U Cameron
- Department of Infectious Diseases, Monash University and Alfred Hospital, Melbourne, VIC, Australia
| | - Fiona Hore-Lacy
- The Jeffrey Modell Diagnostic and Research Centre for Primary Immunodeficiencies, Melbourne, VIC, Australia.,Department of Allergy, Immunology and Respiratory Medicine, The Alfred Hospital, Melbourne, VIC, Australia
| | - Michael F Sutherland
- Department of Respiratory and Sleep Medicine, The Austin Hospital, Melbourne, VIC, Australia
| | - Sara L Barnes
- Department of Medicine, Monash Medical Centre, Melbourne, VIC, Australia.,Department of Allergy and Immunology, Monash Medical Centre, Melbourne, VIC, Australia
| | - Stephen Holdsworth
- Department of Medicine, Monash Medical Centre, Melbourne, VIC, Australia.,Department of Allergy and Immunology, Monash Medical Centre, Melbourne, VIC, Australia
| | - Samar Ojaimi
- The Jeffrey Modell Diagnostic and Research Centre for Primary Immunodeficiencies, Melbourne, VIC, Australia.,Department of Medicine, Monash Medical Centre, Melbourne, VIC, Australia.,Department of Allergy and Immunology, Monash Medical Centre, Melbourne, VIC, Australia
| | - Gary A Unglik
- Department of Clinical Immunology and Allergy, The Royal Melbourne Hospital, Melbourne, VIC, Australia
| | - Joseph De Luca
- Department of Clinical Immunology and Allergy, The Royal Melbourne Hospital, Melbourne, VIC, Australia.,School of Medicine, The University of Melbourne, Melbourne, VIC, Australia
| | - Mittal Patel
- Department of Clinical Immunology and Allergy, The Royal Melbourne Hospital, Melbourne, VIC, Australia.,School of Medicine, The University of Melbourne, Melbourne, VIC, Australia
| | - Jeremy McComish
- Department of Clinical Immunology and Allergy, The Royal Melbourne Hospital, Melbourne, VIC, Australia
| | - Kymble Spriggs
- Department of Clinical Immunology and Allergy, The Royal Melbourne Hospital, Melbourne, VIC, Australia.,Department of Allergy and Immunology, Monash Medical Centre, Melbourne, VIC, Australia.,School of Medicine, The University of Melbourne, Melbourne, VIC, Australia
| | - Yang Tran
- Department of Clinical Immunology and Allergy, The Royal Melbourne Hospital, Melbourne, VIC, Australia
| | - Priscilla Auyeung
- Department of Clinical Immunology and Allergy, The Royal Melbourne Hospital, Melbourne, VIC, Australia
| | - Katherine Nicholls
- Department of Clinical Immunology and Allergy, The Royal Melbourne Hospital, Melbourne, VIC, Australia
| | - Robyn E O'Hehir
- Department of Allergy, Immunology and Respiratory Medicine, The Alfred Hospital, Melbourne, VIC, Australia.,Department of Immunology and Pathology, Central Clinical School, Monash University and Alfred Hospital, Melbourne, VIC, Australia
| | - Philip D Hodgkin
- Immunology Division, The Walter and Eliza Hall Institute for Medical Research, Melbourne, VIC, Australia.,Department of Medical Biology, The University of Melbourne, Melbourne, VIC, Australia
| | - Jo A Douglass
- Department of Clinical Immunology and Allergy, The Royal Melbourne Hospital, Melbourne, VIC, Australia.,School of Medicine, The University of Melbourne, Melbourne, VIC, Australia
| | - Vanessa L Bryant
- Department of Clinical Immunology and Allergy, The Royal Melbourne Hospital, Melbourne, VIC, Australia.,Immunology Division, The Walter and Eliza Hall Institute for Medical Research, Melbourne, VIC, Australia.,Department of Medical Biology, The University of Melbourne, Melbourne, VIC, Australia.,The Jeffrey Modell Diagnostic and Research Centre for Primary Immunodeficiencies, Melbourne, VIC, Australia
| | - Menno C van Zelm
- The Jeffrey Modell Diagnostic and Research Centre for Primary Immunodeficiencies, Melbourne, VIC, Australia.,Department of Allergy, Immunology and Respiratory Medicine, The Alfred Hospital, Melbourne, VIC, Australia.,Department of Immunology and Pathology, Central Clinical School, Monash University and Alfred Hospital, Melbourne, VIC, Australia
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Mehra V, Luca JD. Long-range magnetic order and the darwin lagrangian. Phys Rev E Stat Phys Plasmas Fluids Relat Interdiscip Topics 2000; 61:1199-1205. [PMID: 11046395 DOI: 10.1103/physreve.61.1199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/1999] [Indexed: 05/23/2023]
Abstract
We simulate a finite system of N confined electrons with inclusion of the Darwin magnetic interaction in two and three dimensions. The lowest-energy states are located using the steepest descent quenching adapted for velocity dependent potentials. Below a critical density the ground state is a static Wigner lattice. For supercritical density the ground state has a nonzero kinetic energy. The critical density decreases with N for exponential confinement but not for harmonic confinement. The lowest-energy state also depends on the confinement and dimension: an antiferromagnetic cluster forms for harmonic confinement in two dimensions.
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Affiliation(s)
- V Mehra
- Departamento de Fisica, Universidade Federal de Sao Carlos, Rod. Washington Luiz km 235, 13565-905, Caixa Postal 676, Sao Carlos, SP, Brazil
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