Speaker
            
    Gleb Zverev
        
            (MIPT)
        
    Description
We investigate the late-time behavior of the thermal two-point function for a Bose gas in a curved space-time with a Killing horizon. We demonstrate that the late-time behavior undergoes a sharp transition at a critical temperature, reminiscent of a phase transition. Contrary to expectations for typical gases, the relaxation time does not vanish at high temperatures but instead saturates to a constant value that depends on the imaginary part of the lowest quasinormal modes.
Author
        
            
                
                
                    
                        Gleb Zverev
                    
                
                
                        (MIPT)
                    
            
        
    
        Co-author
        
            
                
                
                    
                        Dmitrii Diakonov
                    
                
                
                        (MIPT and ITEP)