Preheat the oven to 450 degrees. In a small bowl, stir together 3 tablespoons brown sugar, the cayenne, cinnamon, and a large pinch of both salt and pepper. Place the pork chops on a cutting board and rub them all over with the brown sugar mixture.Heat the olive oil in a large skillet over high heat. When the oil shimmers, add the pork chops and sear for 2 to 4 minutes per side or until golden brown. Remove the pork chops from the skillet and set aside.To the skillet, slowly pour in the wine and pomegranate juice. Add the remaining 1 tablespoon brown sugar, the butter, cranberries, thyme, and rosemary. Season with salt. Bring the sauce to a boil over high heat. Reduce the heat to medium and slide the pork chops into the sauce, cook for a minute longer and remove from heat.Transfer the skillet to the oven and roast for 10-15 minutes or until the chops are lightly charred and the sauce thickened. Serve the chops with the pan sauce spooned over top.