Experimental evidence of replica symmetry breaking in random lasers

N Ghofraniha¹, I Viola², F Di Maria³, G Barbarella⁴, G Gigli⁵, L Leuzzi⁶, C Conti⁷

Affiliations

¹ 1] Institute for Chemical Physical Processes, CNR (CNR-IPCF), UOS Roma Kerberos, Dept. of Physics, La Sapienza University, Piazzale Aldo Moro 5, I-00185 Rome, Italy [2] Department of Physics, La Sapienza University, Piazzale Aldo Moro 5, I-00185 Rome, Italy [3] Institute for Complex Systems, CNR (CNR-ISC), Via dei Taurini 19, I-00185 Rome, Italy.
² 1] Department of Physics, La Sapienza University, Piazzale Aldo Moro 5, I-00185 Rome, Italy [2] National Nanotechnology Laboratory of CNR-Nanoscience Institute (NNL, CNR-NANO), Via Arnesano, I-73100 Lecce, Italy.
³ 1] Institute of Organic Synthesis and Photoreactivity, CNR (CNR-ISOF), Via Piero Gobetti 101, I-40129 Bologna, Italy [2] MIST.E-R Laboratory, Via Piero Gobetti 101, I-40129 Bologna, Italy.
⁴ Institute of Organic Synthesis and Photoreactivity, CNR (CNR-ISOF), Via Piero Gobetti 101, I-40129 Bologna, Italy.
⁵ 1] National Nanotechnology Laboratory of CNR-Nanoscience Institute (NNL, CNR-NANO), Via Arnesano, I-73100 Lecce, Italy [2] Department of Mathematics and Physics "Ennio de Giorgi", Salento University, Via Arnesano, I-73100 Lecce, Italy.
⁶ 1] Institute for Chemical Physical Processes, CNR (CNR-IPCF), UOS Roma Kerberos, Dept. of Physics, La Sapienza University, Piazzale Aldo Moro 5, I-00185 Rome, Italy [2] Department of Physics, La Sapienza University, Piazzale Aldo Moro 5, I-00185 Rome, Italy.
⁷ 1] Department of Physics, La Sapienza University, Piazzale Aldo Moro 5, I-00185 Rome, Italy [2] Institute for Complex Systems, CNR (CNR-ISC), Via dei Taurini 19, I-00185 Rome, Italy.

PMID: 25588019
DOI: 10.1038/ncomms7058

Free article

Experimental evidence of replica symmetry breaking in random lasers

N Ghofraniha et al. Nat Commun. 2015.

Free article

. 2015 Jan 14:6:6058.

doi: 10.1038/ncomms7058.

Authors

N Ghofraniha¹, I Viola², F Di Maria³, G Barbarella⁴, G Gigli⁵, L Leuzzi⁶, C Conti⁷

Affiliations

¹ 1] Institute for Chemical Physical Processes, CNR (CNR-IPCF), UOS Roma Kerberos, Dept. of Physics, La Sapienza University, Piazzale Aldo Moro 5, I-00185 Rome, Italy [2] Department of Physics, La Sapienza University, Piazzale Aldo Moro 5, I-00185 Rome, Italy [3] Institute for Complex Systems, CNR (CNR-ISC), Via dei Taurini 19, I-00185 Rome, Italy.
² 1] Department of Physics, La Sapienza University, Piazzale Aldo Moro 5, I-00185 Rome, Italy [2] National Nanotechnology Laboratory of CNR-Nanoscience Institute (NNL, CNR-NANO), Via Arnesano, I-73100 Lecce, Italy.
³ 1] Institute of Organic Synthesis and Photoreactivity, CNR (CNR-ISOF), Via Piero Gobetti 101, I-40129 Bologna, Italy [2] MIST.E-R Laboratory, Via Piero Gobetti 101, I-40129 Bologna, Italy.
⁴ Institute of Organic Synthesis and Photoreactivity, CNR (CNR-ISOF), Via Piero Gobetti 101, I-40129 Bologna, Italy.
⁵ 1] National Nanotechnology Laboratory of CNR-Nanoscience Institute (NNL, CNR-NANO), Via Arnesano, I-73100 Lecce, Italy [2] Department of Mathematics and Physics "Ennio de Giorgi", Salento University, Via Arnesano, I-73100 Lecce, Italy.
⁶ 1] Institute for Chemical Physical Processes, CNR (CNR-IPCF), UOS Roma Kerberos, Dept. of Physics, La Sapienza University, Piazzale Aldo Moro 5, I-00185 Rome, Italy [2] Department of Physics, La Sapienza University, Piazzale Aldo Moro 5, I-00185 Rome, Italy.
⁷ 1] Department of Physics, La Sapienza University, Piazzale Aldo Moro 5, I-00185 Rome, Italy [2] Institute for Complex Systems, CNR (CNR-ISC), Via dei Taurini 19, I-00185 Rome, Italy.

PMID: 25588019
DOI: 10.1038/ncomms7058

Erratum in

Corrigendum: Experimental evidence of replica symmetry breaking in random lasers.
Ghofraniha N, Viola I, Di Maria F, Barbarella G, Gigli G, Leuzzi L, Conti C. Ghofraniha N, et al. Nat Commun. 2015 Feb 12;6:6300. doi: 10.1038/ncomms7300. Nat Commun. 2015. PMID: 25672595 No abstract available.

Abstract

Spin-glass theory is one of the leading paradigms of complex physics and describes condensed matter, neural networks and biological systems, ultracold atoms, random photonics and many other research fields. According to this theory, identical systems under identical conditions may reach different states. This effect is known as replica symmetry breaking and is revealed by the shape of the probability distribution function of an order parameter named the Parisi overlap. However, a direct experimental evidence in any field of research is still missing. Here we investigate pulse-to-pulse fluctuations in random lasers, we introduce and measure the analogue of the Parisi overlap in independent experimental realizations of the same disordered sample, and we find that the distribution function yields evidence of a transition to a glassy light phase compatible with a replica symmetry breaking.

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Experimental evidence of replica symmetry breaking in random lasers

Affiliations

Experimental evidence of replica symmetry breaking in random lasers

Authors

Affiliations

Erratum in

Abstract

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LinkOut - more resources

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