SCOAP3 Repository 21 records found  1 - 10nextendSearch took 0.02 seconds. 
1. Probing out-of-time-order correlators / Chaudhuri, Soumyadeep ; Loganayagam, R.
We present a method to probe the Out-of-Time-Order Correlators (OTOCs) of a general system by coupling it to a harmonic oscillator probe. [...]
Published in JHEP 1907 (2019) 006 10.1007/JHEP07(2019)006 arXiv:1807.09731
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2. Spectral representation of thermal OTO correlators / Chaudhuri, Soumyadeep ; Chowdhury, Chandramouli ; Loganayagam, R.
We study the spectral representation of finite temperature, out of time ordered (OTO) correlators on the multi-time-fold generalised Schwinger-Keldysh contour. [...]
Published in JHEP 1902 (2019) 018 10.1007/JHEP02(2019)018 arXiv:1810.03118
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3. Effective action for relativistic hydrodynamics: fluctuations, dissipation, and entropy inflow / Haehl, Felix ; Loganayagam, R. ; Rangamani, Mukund
We present a detailed and self-contained analysis of the universal SchwingerKeldysh effective field theory which describes macroscopic thermal fluctuations of a relativistic field theory, elaborating on our earlier construction [1]. [...]
Published in JHEP 1810 (2018) 194 10.1007/JHEP10(2018)194 arXiv:1803.11155
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4. Inflow Mechanism for Hydrodynamic Entropy / Haehl, Felix M. ; Loganayagam, R. ; Rangamani, Mukund
We argue that entropy production in hydrodynamics can be understood via a superspace inflow mechanism. [...]
Published in Physical Review Letters 121 (2018) 10.1103/PhysRevLett.121.051602 arXiv:1803.08490
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5. Schwinger-Keldysh superspace in quantum mechanics / Geracie, Michael ; Haehl, Felix M. ; Loganayagam, R. ; Narayan, Prithvi ; et al
We examine, in a quantum mechanical setting, the Hilbert space representation of the Becchi, Rouet, Stora, and Tyutin (BRST) symmetry associated with Schwinger-Keldysh path integrals. [...]
Published in Physical Review D 97 (2018) 10.1103/PhysRevD.97.105023 arXiv:1712.04459
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6. Abelian tensor models on the lattice / Chaudhuri, Soumyadeep ; Giraldo-Rivera, Victor I. ; Joseph, Anosh ; Loganayagam, R. ; et al
We consider a chain of Abelian Klebanov-Tarnopolsky fermionic tensor models coupled through quartic nearest-neighbor interactions. [...]
Published in Physical Review D 97 (2018) 10.1103/PhysRevD.97.086007 arXiv:1705.01930
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7. Thermal out-of-time-order correlators, KMS relations, and spectral functions / Haehl, Felix ; Loganayagam, R. ; Narayan, Prithvi ; Nizami, Amin ; et al
We describe general features of thermal correlation functions in quantum systems, with specific focus on the fluctuation-dissipation type relations implied by the KMS condition. [...]
Published in JHEP 1712 (2017) 154 10.1007/JHEP12(2017)154 arXiv:1706.08956
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8. Renormalization in open quantum field theory. Part I. Scalar field theory / Baidya, Avinash ; Jana, Chandan ; Loganayagam, R. ; Rudra, Arnab
While the notion of open quantum systems is itself old, most of the existing studies deal with quantum mechanical systems rather than quantum field theories. [...]
Published in JHEP 1711 (2017) 204 10.1007/JHEP11(2017)204 arXiv:1704.08335
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9. Schwinger-Keldysh formalism. Part I: BRST symmetries and superspace / Haehl, Felix ; Loganayagam, R. ; Rangamani, Mukund
We review the Schwinger-Keldysh, or in-in, formalism for studying quantum dynamics of systems out-of-equilibrium. [...]
Published in JHEP 1706 (2017) 069 10.1007/JHEP06(2017)069 arXiv:1610.01940
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10. Schwinger-Keldysh formalism. Part II: thermal equivariant cohomology / Haehl, Felix ; Loganayagam, R. ; Rangamani, Mukund
Causally ordered correlation functions of local operators in near-thermal quantum systems computed using the Schwinger-Keldysh formalism obey a set of Ward identities. [...]
Published in JHEP 1706 (2017) 070 10.1007/JHEP06(2017)070 arXiv:1610.01941
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SCOAP3 Repository : 21 records found   1 - 10nextend
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